Certified Rocket League experts

So for a loooong time I was convinced all cars had the same performance and hitbox, otherwise you'd clearly see a preferred car in competitive play, right?
But it looks like there's some pretty good evidence showing cars have different performance. And it also turns out I was using one of the worst cars :S
There's a nice spreadsheet detailing the differences between the cars.
https://docs.google.com/spreadsheets/d/1Ca_CziO64oy12QViMYHHvtK4sW3hIIO3oexvr0yhs6A/edit#gid=0
I guess I'll have to give up the sexy looks of my paladin D: