In moon landing units that’s ~186 miles per hour, which is around three times the speed limit of an average American interstate highway. I would not expect the average passenger car to be able to achieve that speed, but there are sports cars that can. You’re probably looking at an uprange Corvette, some of the higher end Porches, a lot of Ferraris, Lambroghinis etc. Something Jeremy Clarkson would describe in an impressed tone of voice. It is my understanding that a lot of supersport motorcycles are limited to exactly that speed; most liter bikes have no problem powering themselves that fast, the question is maintaining control. If there’s a pothole or some sand or a slight curve, will the rider survive encountering it at 3 miles a minute?

Going that fast in a car, you start to wonder how long the tires are going to hold up. At its top speed, a Bugatti Veyron will actually run out of tires before it runs out of gas.

In New World landing units, it’s ~161 knots. This is very close to the V~NE~ of a Cessna 172 Skyhawk. The Never Exceed speed, top of the red arc. Go faster than that and the airplane is just going to break. It’s the approximate cruise speed of a Beechcraft Bonanza and the higher end of landing speeds for a Boeing 737.