Hi y'all,
These were rendered by Robert Scott, in Thea Render, and I think they look very good. I modeled the car in SketchUp, and I have been doing the 2D "working drawings" in DataCAD X3. The ability to XRef SketchUp (v7) files into X3 and then cut sections, from them is really helpful.
I think Thea is head and shoulders better than the IDX Renditioner that I have been trying out -- it puts the shadow on the ground, and it reflects the bitmap image in the surfaces of the model very effectively. If it wasn't for the watermarks, these might pass as photos to the casual viewer...