It’s anecdotal, but also widely reported by pretty much everyone who’s bought a car in the last couple of years. I bought mine a year ago. Literally nothing but full trim on the lot, and they just took delivery the day before. My friend works for the dealer group, and that’s why I bought from him, but it’s been that way for a while, apparently.

Of course, if the dealerships want to report what they are ordering to sell, I’m sure people would be interested. The car companies might have the data somewhere in their meeting notes since they are publicly traded, but that would just say what’s ordered from them, not necessarily where it goes.