by peltazoid
Maybe this is an effect of groupthink on BGA?I've played this more IRL than I have on BGA and it sometimes is the case, sometimes not. You have an incentive to bet on your own car (or at least make sure it places well), during the bidding phase you should try and get a car that best matches your hand. If you can move black a lot try for the black car.
Likewise when a car is pushed over the betting line, check your hand can you influence your car more than the one just past the line. I've seen a lot of games where the 1st car to cross the betting line has not won and placed quite low.