You're right, the community of blender (and also other open source software) is great, that's the reason why I'm trying to use it from time to time, but I am still not able to use it correctly. As a student I'm able to use most of the Autodesk products for free and I once bought the Adobe Creative Suite (yes, I am one of the fools who did pay that much money). I don't think, Blender is a bad solution, it's just not comfortable for me, as I'm used to do things in 3ds max, Maya or Inventor. The handling is totally different or it was, when I tried it the last time.

But back to topic: I am looking forward for your final result of the rendered car :)