Quote from The Very End :

What the hell had that with this topic to do!?
Thats just nasty anyway, but aswell therfor we don`t want you to be able to step out of the car.

I wasn't talking to you...

I know that, but I said I did not like what`s was inside that link, thats all.

Wooh! Out of the car Look, If you are out of fuel, you can ran to pits and get some fuel and ran back to car and load the car full and continue the race and and and...
Hey! Guns would be cool too! You can shoot other racers tyres )

You can sort of get out of the car, try pressing shift U, but no person model or anything, you can sort of move around like a first person shooter. probably knew about this but hey, thought i would just throw this in for good measure.