Any ideas?

who can help me with a mechanic...or a winch(for a missing wheel)

wheels are too bright imo..
rest is good..

Looks Cool, Realistic.. Shadow is Lousy keep going.

well very hot but like they said ^^ wheels and shade need to be changed def.
the wheel angles also are off
i would even rotate the car so its more horizontal in the pic
body and fb look awsome

Erase the bright part of the tires, and decrease the ground shadow around the wheels. Also, make the rear bumper ground shadow smaller too.
Here's two wrenches:
http://www.pachd.com/free-images/household-images/wrench-02.jpg
http://library.otterbein.edu/Tutorial/Image/Wrench.jpg
And you might wanna add some screws or bolts to the ground, it would really make it look cool:
http://www.guttersupply.com/file_area/public/File/screws.jpg
http://softeuropean.files.wordpress.com/2008/12/bolts.jpg

Good luck with it Clark Kent!

Nicklas

thx guys for comments....and also thx Nicklas for donors