about car

hi everybody
please tuts?
how can create two car accident!?
and how can create for example truck cross from mountain ?

Not very clear but here is a nice car accident tutorial:http://www.youtube.com/watch?v=WSZ8AExo2sk
Hope this helps

this is good thanks
but in this tutorial car handy deform…blender not deform with physics
i want physic like this

work with Softimage - 3DMax - Mad Car - Vray - Fusion & After Effects