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Ridiculously fast. More than double than what most people will drive on a highway. Illegal on a highway anywhere but Germany. And even here it would be quite unsafe and thus illegal in most driving conditions.
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Submitted 3 weeks ago by intellectualcuriosity@reddthat.com to nostupidquestions@lemmy.world
Comments
PonyOfWar@pawb.social 3 weeks ago
gazter@aussie.zone 3 weeks ago
Formula 1 races average about 200kph, with a top speed of 375. These are the best of the best professionally trained drivers in multimillion dollar equipment tailored to them and designed to keep them (and others) safe at those speeds.
300km/h on the highway is essentially suicide by stupidity, not to mention manslaughter for whoever you hit. You are travelling fast enough that you literally don’t have time to react to something several hundred metres in front of you.
150 is really fast, 200 is stupid fast, and 300 is really fucking stupid fast.
Mac@mander.xyz 3 weeks ago
That’s unreasonably fast even for car enthusiasts.
The percentage of consumer cars that can even do that is infinitesimally small.
bstix@feddit.dk 3 weeks ago
Unpredictable things happens at that speed.
Forget about braking distance. The reaction time is the difference between life and dying before you even know it.
I know of one example where a motorcyclist killed himself that way. Nobody knows how fast he was going but it’s assumed above 250 km/h, on a regular highway. Down the road is a cross section. A lorry was fully stopped at the crossing and preparing to turn right onto the highway in the same direction as the motorcycle. The lorry driver checked both directions and saw that the road was completely clear as far as the eye could see, hundreds of meters.
A split second later he heard a bump and pulled over to check if he had hit an animal or something. He found a massive hole in the back and the debris from a motorcycle. There was no brake marks or anything indicating that the motorcycle had even attempted to brake or steer around. The theory is that the motorcyclist might have glimpsed at the speedometer or something for long enough that he drove the entire visible distance before being able to even react.
Obviously he was a fault himself, but the point is that at speeds like this, you no longer have any capability to predict what happens next.
If your friend thinks that cool, he might as well play Russian roulette. At least that doesn’t put innocent people in danger.
WoodScientist@sh.itjust.works 3 weeks ago
That’s 186 mph. In the US, the highest posted speed limit anywhere is 85 mph, on some stretches of highway in remote rural Texas. So you’re looking at more than 2x the speed limit of the highest posted speed limit in the country. A lot of cars come preprogrammed with some speed governor in them. They usually top out at an already absurd speed of 125-155 mph.
So 300 km/hr is absolutely insane. That’s enough to get jail time in most states.
kitnaht@lemmy.world 3 weeks ago
That’s about 40mph faster than I’ve ever driven, and even in a sports car it gets squirrely VERY fast at those speeds. Holy shit.
WoodScientist@sh.itjust.works 3 weeks ago
Oh, and for added physics fun, that extra 40 mph represents a 62% increase in vehicle kinetic energy and stopping distance.
Tungsten5@lemm.ee 3 weeks ago
That is very fast. So fast in fact that at in only 1 hour you will travel 300km.
Strider@lemmy.world 3 weeks ago
Let’s just say that am Airbus A320 takes off at around 270 km/h.
So having the aerodynamics you can literally fly at that speed. Well, weighing more than 37 tons, even.
CLOTHESPlN@lemmy.world 3 weeks ago
Realistically you don’t get to react at that speed. Best you can do is slow down and hope… Anything more than small adjustment of the steering wheel and you’re no longer on the road. If I crashed at even half that speed I would probably wish I was dead because it’s going to be a very long time if ever I function correctly again.
BorgDrone@lemmy.one 3 weeks ago
So having the aerodynamics you can literally fly at that speed.
You can at much, much slower speeds. For example this STOL plane only stalls at 32km/h).
Strider@lemmy.world 3 weeks ago
Indeed, that’s why I added the (empty, so even more than) 37 tons weight.
litchralee@sh.itjust.works 3 weeks ago
300 kph is 186 mph, which is well beyond the posted speed limit of any jurisdiction I can think of. For reference, here in California, a conviction for driving over 160 kph (100 mph) is punishable as a felony, meaning at least one year in state prison. The highest speed limit in California is 113 kph (75 mph).
In metric units, a triple digit speed (eg 100 kph) is the domain of motorways (aka freeways or expressways). And even arrow-straight motorways have a maximum posted speed limit of some 140 kph. In Germany, the motorway can sometimes have no limit, but the recommended speed – the yellow speed limits in the USA – for German autobahns is 130 kph, with some speedy cars occasionally doing 200 kph, I’ve heard.
For further reference, the fastest speed achieved during an F1 motor race is 372 kph. Also, Japanese bullet trains heading west from Tokyo on the Tokaido Shinkansen route run at 285 kph.
300 kph on a public road is grossly irresponsible, since even with no one around, the road is not designed for that speed. Compare race tracks with freeways, and it becomes clear that surface quality, drainage, sight lines, clear space, and other requirements for 200+ kph just aren’t present on public roads, with the notable exception of very special public roads like the Nürburgring.
Allero@lemmy.today 3 weeks ago
This is basically Formula-1 race car/small aircraft speed.
Regular cars will only get you to, like, 160-180 km/h at full gas.
In other words, this is insanely fast and potentially very deadly.
At speeds above ~150 km/h, even on a well-organized highway, you won’t be able to control your surroundings and have to rely on sheer luck to survive, unless you’re a professional race pilot on an empty road. Also, unless the car is equipped with special gear for improved road grip, it will become uncontrollable because it will literally start to hover a little.
oascany@lemmy.world 3 weeks ago
I agree 300 km/h is insanely fast and stupid on public roads.
The rest of your points sound like you live in 2005.
A lot of regular traffic nowadays will get you to 200 km/h. Above 150 km/h is not relying on sheer luck, I’m sorry that’s just not true. Yes it’s really really fast and really illegal, but you maintain control given a few conditions.
I’m also not sure what you mean by “special gear for improved road grip.” A car’s shape naturally somewhat resembles an aerofoil, so yes you generate lift at high speeds. Most modern cars account for this by aerodynamic design, including but not limited to things like diffusers, spoilers, splitters, and the shape of the body itself. These help keep you planted along with good suspension and good tires. I’m certain that just about any car made within the last two decades will not become uncontrollable past 150 km/h unless you’re driving on a really wet surface.
BrutallyHonestPOS@lemm.ee 3 weeks ago
At speeds above ~150 km/h, even on a well-organized highway, you won’t be able to control your surroundings and have to rely on sheer luck to survive, unless you’re a professional race pilot on an empty road. Also, unless the car is equipped with special gear for improved road grip, it will become uncontrollable because it will literally start to hover a little.
sorry but no. maybe i am biased since my sole experience is driving the german autobahn, but i drive well beyond 200km/h on a regular basis, which i consider travel speed when the road is not too crowded. cars that could go faster than 250km/h are usually limited to 250km/h. traveling at that speed is loud and a bit stressful, since the difference between you and other cars traveling at lower speeds becomes too high. they will not see you coming before switching lanes and braking distances are very high. but cars dont randomly switch lanes unless tying to pass others cars and you can predict these situations and slow down.
you will not hover, you can control your car normally and the only required luck is to not have other actively try to kill themselfes. you dont need to be a professional race pilot and dont need special gear (of course cars can easily be underequipped for these speeds, but you dont need special gears.
do you mean speeds above 250km/h or speeds above 150mp/h? if that was just a typo i would argue a lot less because those speeds stop being fun to drive, but are also accessible for normal drivers with normal street cars (with enough power of course, but you see plenty of those cards on the average parking lot in front of any supermarket)
Opinionhaver@feddit.uk 3 weeks ago
Fastes I’ve driven was 200km/h and it felt like if I’d hit a pebble my car would’ve taken off. 300km/h is airplane speed.
x00z@lemmy.world 3 weeks ago
It really depends on the car. Newer cars and better brands will make 200km/h feel like 100km/h.
I have driven a car from 2000 that would completely start rumbling at 160kmh, compared to a car from 2022 where 220km/h felt like I was driving on clouds.
slaneesh_is_right@lemmy.org 3 weeks ago
My first nice car was a bmw from 2008, and driving through germany was definitely an experience. 260km/h felt like 120km/h in my first car.
zakobjoa@lemmy.world 3 weeks ago
I got my 1996 Renault Laguna up to 200km/h and it felt and sounded like the engine block was about to jump into the passenger cabin.
zeropublix@lemmy.ml 3 weeks ago
That’s so true. Drove my fiat panda with 180 (dunno how I got it there. It was downhill for sure) and it was absolutely terrifying.
Later drove an Audi A6 with 230. Obviously fast but nowhere near terrifying.
Another time a company Ford Mondeo (Diesel) 240 and it felt like sitting in a train.
I want to stress that I never kept those speeds for long. It was rather seeing how fast I can go in a setting that allowed it with minimal risk for everyone involved. I must say that I don’t see the thrill in driving that fast. Everything is so exhausting to pay attention to.
trolololol@lemmy.world 3 weeks ago
My car rumbles at 100km/h and it’s a 2016 model. It’s just cheap, what do you expect?
Opinionhaver@feddit.uk 3 weeks ago
Yeah, the first time I tired it I got to 160kph on a -03 hatchback Corolla and it felt like the mirrors were about to fly off. The 200kph I did few years later was on a -01 Audi A6 and the ride was smooth as hell and the car felt very planted. It’s just that at those speeds even low bumps feel like ramps.
TheRealKuni@midwest.social 3 weeks ago
Yeah, in my younger days I got up to ≈210km/h once. I can’t believe I was dumb enough to do that.
At 200km/h, you’re passing the cars around you as quickly as you usually pass stuff stationary by the side of the road. It’s insane.
The car felt planted and controlled, but still. One slightly wrong move and I would’ve been flying off an embankment or killing a fellow motorist.
Opinionhaver@feddit.uk 3 weeks ago
Doing it on empty highway at the middle of the night was scary enough for me.
MTK@lemmy.world 3 weeks ago
On a highway you would usually go 80-120 kmh.
No easy way to imagine that kind of speed in a car for most people.
Here are some things and their speeds in kmh:
- human falling at terminal velocity belly down: 200 kmh
- plane right before touchdown: 250 kmh
- f1 racer: 320 kmh
- cannon ball being fired: 3000 kmh
- fastest baseball pitch: 170 kmh
Anyway, he probably has only a few more times of that before he crashes and instantly dies (and probably kills a bunch of people)
skozzii@lemmy.ca 3 weeks ago
Don’t think they did, I’ve had some high performance cars and it takes time to get up to speed, need flat road and at that speed any other car is going to likely lead to a crash.
Most cars don’t even have the right gears to get to that speed, so I call BS.
M3 top speed is 250 Porsche 911 is 330
It would take well over 10 seconds to get to that speed in a supercar, and impossible in a normal car.
AnAustralianPhotographer@lemmy.world 3 weeks ago
Ridiculously fast.
Bullet train fast. But in terms of cars, he would have been driving around three times the legal limit in Australia (110km/hr). Its about as fast a formula 1 cars or out V8 cars going full speed.
The fastest production car (Bugatti Veyron can go 431km/h)
MoreFPSmorebetter@lemmy.zip 3 weeks ago
It’s about 3 times the speed limit for most highways in most places. Give or take.
The stopping distance at those speeds is 500+ meters.
Even with the best tires, brakes and driver that’s several football fields end to end before that car comes to a stop. If anything happens at those speeds it is unlikely the driver will be able to do anything about it in time.
There was a woman that worked for a car magazine that was doing a video on the Autobahn and someone pulled out in front of her around those speeds she instantly killed everyone on the vehicle she hit and she was left permanently injured and barely able to walk. She wasn’t even at fault in that situation either. It’s the job of the people pulling into the fast lane to check for fast moving cars and for whatever reason they didn’t.
You friend is playing a dangerous game with more than their own life.
LazyGit@feddit.org 3 weeks ago
If you go faster than 130 km/h you are always allotted a certain percentage of fault in Germany. You don’t have the right to speed if you are endangering others.
MoreFPSmorebetter@lemmy.zip 3 weeks ago
That is simply not true. 130kph is the recommended speed. For certain marked stretches of the Autobahn there is no speed limit and it is understood that you do not pull into the left lane without checking for fast moving cars behind you. If they find that you still would have crashed if you had been going 130kph you are unlikely to be held responsible.
She was filming a video at the time and when she woke up in the hospital days later the German police told her what had happened and she was not found to be at fault at all. The deceased person who had pulled into the left lane without checking was entirely at fault. She flew home as soon as the German doctors had done the major surgery to her legs and spine.
My mom’s entire side of the family is German and many of them still live in Germany. Talks about the Autobahn have come up at family gatherings on multiple occasions.
I am willing to admit my data might be out of date, but from a quick Google it appears to still be the same rules.
RaptorBenn@lemmy.zip 3 weeks ago
Faster than I’d trust a goverment built road is flat.
zxqwas@lemmy.world 3 weeks ago
About three times the usual speed on a highway.
And a highway is about three times the allowed speed of a school zone.
So roughly the same as driving highway speeds in a school zone.
hemko@lemmy.dbzer0.com 3 weeks ago
~83m/s
For the Americans here, 83m is ~0.83 football fields
It’s more than 3 times the common speed limits on roads, and more than 2 times faster than any speed limit on a motorway in the world (Autobahn doesn’t have limit)
Let’s imagine your car could pull 6g while decelerating, which is the upper limit what non-trained person is able to take. This would mean that from hitting the brake pedal, your car would move for another 1.4 seconds, in which time it had moved 116 metres. Realistically it’d be A LOT longer but should give a some kind of idea
Gobbel2000@programming.dev 3 weeks ago
Just the right speed for high-speed trains.
TheCriticalMember@aussie.zone 3 weeks ago
3 times as fast as 100? I don’t know what you’re expecting here. It’s 83.3 metres per second, if that helps. Your friend must have a nice car, there’s not many that can go that fast, and even fewer that can do it and still handle predictably.
Mothra@mander.xyz 3 weeks ago
Okay so I don’t know if you’re into birdwatching at at all but that’s about the top speed of a peregrine falcon. Have you ever seen a bird of prey dive to attack?
That’s also about the stalling speed of a passenger airplane, that is, the minimum speed it must fly at before losing lift.
I couldn’t think of anything else that goes at around 300kmh but if I get new ideas I’ll let you know.
onehundred@lemm.ee 3 weeks ago
186 miles per hour. It’s fast, really fast, Depending on country likely really illegal
Sylvartas@lemmy.dbzer0.com 3 weeks ago
That is almost 3 times the highway speed limit and roughly 83 m/s if I got the math right. At that speed the car will travel 40m on average before you even press the brake pedal, then the average car will take probably about 1s (which I think is conservatively low) of emergency braking to stop (or almost), traveling another 83m.
SomeAmateur@sh.itjust.works 3 weeks ago
That is the kind of speed it takes to get a 747 into the air on takeoff.
If you rolled down a back window of a car and stuck your head out (not recommended) you would feel wind that would max out typhoon and hurricane scales, similar to an EF4 Tornado. The skin of your face would flap like fabric, as seen here
Agent641@lemmy.world 3 weeks ago
About three times the speed limit of freeways in Australia.
About the same as the top speed of a Honda CBR-XX Blackbird, which at production in 1998 was the fastest production bike in the world.
otter@lemmy.ca 3 weeks ago
This is something that’s hard to describe with words
This video has someone going that speed, they also talk through some of the considerations on how to do that safely
4K HDR POV: How to drive 300+ kmh on German Autobahn in a McLaren
There’s also this video with a motorcycle doing something similar
Buffalox@lemmy.world 3 weeks ago
It’s way faster than most cars can drive. Even high end performance cars often have a limiter at 250 km/h.
Here in Denmark, the limit is 130 km/h, If you drive 200 or faster, your car is immediately confiscated, and you lose your drivers license.
Many electric cars are limited to 160 km/h.So in short 300 is about twice what most would consider responsible. The breaking distance is 550 meter or more than half a km, in ideal weather with no slopes, and a response time to push the brakes of only half a second. That’s almost 5 times the breaking distance compared to driving 130 km/h (113 m).
Just in the half second to respond, the car will have moved 42 meters at 300 km/h!!BOFH666@lemmy.world 3 weeks ago
It is ridiculous fast and probably not really smart.
But, the fact that we (Europe) have labels for the maximum speed a tire is approved for even till 300kmh, does indicate it is not abnormal.
As others already mentioned, above a certain speed, in case of an accident, you will be held more accountable.
But folks with BMW, Audi, Porsches etc. do drive serious cars. Going faster than 250 is not an issue with most of the models. The biggest challenge is to slow down from these speeds in a controlled way.
Onomatopoeia@lemmy.cafe 3 weeks ago
It’s abnormal.
That kind of speed requires 500hp+, depending on Cd and frontal area.
What percentage of cars produce 500hp?
(Im not even sure 500hp is enough, it’s been a while since I’ve done the math).
Small increments in speed require non-linear increases in power.
IDKWhatUsernametoPutHereLolol@lemmy.dbzer0.com 3 weeks ago
If your friend perhaps a German?
(I heard they have no speed limits 👀)
MemmingenFan923@feddit.org 3 weeks ago
(I heard they have no speed limits 👀)
This is half true. Some highway segments have speed limits like everywher else and some don’t have speed limits.
SomeAmateur@sh.itjust.works 3 weeks ago
And that system is AWESOME and I wish some highways in the US did the same. I fear it would devolve into a regulations nightmare after bubba in his rusted dodge rattles to peices trying to break 80mph.
Flat open highway in between cities in Kansas? Go for it!
But it’s kind of like the US and guns. It’s a cultural ability that is statistically proven to be dangerous and can be seen as too big of a risk for ordinary people to enjoy, and reckless people put the whole acrivity in question.
morgunkorn@discuss.tchncs.de 3 weeks ago
The fastest I drove was 262 km/h on the German highway (which has sections without a speed limit). At this speed, you have to watch as far as you can, because a car on the left lane overtaking other lanes will usually be at most 180 km/h there, so you have to be prepared to slow down a very long time in advance.
300 km/h is just dangerous, you have to be fully concentrated to adapt to the other drivers and it leaves a very thin margin to react (if any), should something happen. You definitely put your life and the one from others around you one the line doing that.
My experience wasn’t particularly pleasant, but it was nice to feel once how the car behaves at its maximum rated speed. I haven’t done it again. But I’ll regularly drive above 160 km/h to just go with the flow.
ininewcrow@lemmy.ca 3 weeks ago
We traveled to Germany years ago, rented a car and drove on the autobahn with no speed limit. We were on a long down hill in a brand new audi a6 … beautiful car and I floored it in the passing lane to 260 kmh … I was scared shitless because I knew that all I needed was a rock on the road or a little bump and we’d both be dead. I looked in my rear view mirror and a guy was flashing me from behind. He wanted me to move over and he passed us just seemingly floating right past us in a luxury Mercedes.
That was the fastest I’ve ever driven anything and it was scary. The car was fine, it’s just knowing that if any small thing came in our way at that speed, the car would fly, crash, crush us to death, rip apart and blow up in a blaze of glory. You can survive a crash at 140 kmh … it would be a miracle to have your body remain in one piece in a crash at 300 kmh
Buffalox@lemmy.world 3 weeks ago
I find it weird that a rental wasn’t limited to 250 km/h. Which most factories do by default. In fact it should be limited to even lower than that IMO.
ininewcrow@lemmy.ca 3 weeks ago
I don’t know honestly … all I know is that the A6 had about 5,000 km on the odometer and everything was pristine new … it was the most luxury brand new car I ever drove. We had to haggle the rental guy to upgrade our rental from a standard rental to one size up … he didn’t have anything in our range but said that he would look into upgrading us further and we ended up with the A6.
Like I said, we were on a nice long downslope in the country side. It was easy to floor it and build up speed but the car seemed to max out at 255 260 and I couldn’t get it any further. The best part was that Mercedes flashing us from behind and wanting to pass.
Later on on the same trip, we noticed to helicopter flights overhead carrying cars away from an accident … they don’t seem to bother calling in tow trucks to carry things away because the pieces of cars that are left from a high speed crash are small enough to be carried away with a chopper.
Tja@programming.dev 3 weeks ago
It probably was indicated 260, real 250. Even the S6 is limited, and for the RS6 you have to buy an option to rise the limit.
SchmidtGenetics@lemmy.world 3 weeks ago
That’s an American law, so vehicles weren’t faster than police vehicles, there was ways to remove the governor though.
x00z@lemmy.world 3 weeks ago
Why should it be if it’s not illegal to go vroom vroom? Makes no sense.
phoenixz@lemmy.ca 3 weeks ago
You technically can survive a 140kph crash in the same way that technically you can survive jumping out an airplane at 10 kilometers, or how you can survive rabies
Technically possible as there are few recorded incidents, but let’s say that you easier win the lottery than surviving any of that shit.
Was it myth busters who smashed a car against a wall at 120 or 140 kph? Don’t know anymore but I do recall the car literally being folded up
At those speeds, crumplezones extend way into the back of your head, so again, you can quite safely bet you’ll die.