I am thinking this subject a little differently. I am thinking, it would be cool not to have those kind of stats that every game has, like acceleration, top speed, etc. I think it may feel "too arcadey" like you are choosing some RC car or playing some Outrun port on PS1. Those "five out of ten" bars are just good for quick comparison which car to choose but I don't know, doesn't it feel a little off? Every car is an individual that deserves to be driven (car rights movement lol), and not an object that can be simplified to couple of stat bars.
It could be nice that you have to drive the car for yourself, and make up your own mind about it, instead of comparing like "this car has top speed of five bars out of ten" and "this car has acceleration six bars out of ten".
Better solution could be information in words. For example: Theoretical top speed (stated by the manufacturer;), car armor plate thickness, weight, motor size, horse power, torsion, pivot pin (I am looking these words straight outta dictionary), downforce, et cetera, some things like that.