I modelled it mostly with nurbs, and some parts polygonally (such as the tires and the windscreen wiper).
I didn't use HDRI. I've taken some shots from the street, then I edited and mapped them on primitives.
I've rendered separately the reflections (fresnel and normal), the diffuse, and the shades for the environment, so it was fun to composite it, that's why I have so many versions.
Couldn't decide about the color.
Here's a white,
a black,

a red one

and finally the pure model.

Thank you for your attention, C&C are welcome.
I was Andrew from Budapest, Hungary