i know the damagee isnt great but its the only nascar game that is fun after this one was made they sold the rights to EA and they made it to official so these kind of crashes are no longer possible.
thats why this is the most fun one for me, here you can flip your car!

yup...thats all there is to nascar, otherwise it sux.

http://videos.streetfire.net/video/ff0c3901-0b0d-4912-9bc3-761051efd4b3.htm

the physics modeling seems a lil bit off in that game... but what do i know... most people go to nascar just to watch the crashes...