Made in blender 2.63rc1 …hope you like it
The car is very good. I would take a bit of speculation and ensuciaria something. Just as if he’d run a race in the rain.
Very real, full of detail, good shaders.
Just one thing seems wrong: the texture of the seat seems stretched.
Did you use hdri environment?
If so, please make a cloudy version.
Clouds reflecting on chrome…
Very good work! A Type D, if I remember my Auto Union race cars correctly.