i like your drawing dude. its prety good car you desighned. Could you do a rendering for me ? its a 1994 GMC C1500 sierra extended cab. I would like it lowered a couple of inches add custom wheels and just make the whole truck custom. If you have any questions email me at firstname.lastname@example.org. Thank You
Rendering is very fast when you have a graphic card working on CUDA. It depends on many parameters (bounces on materials), and the number of samples. You can almost have real time render on medium scenes and good computer (check Youtube modeling videos !) Now, I used only this, I abandonned the Blender Internal Render.