LWO(6),
Package includes bitmaps, models (interior and exterior separated into layers) and scene with pivots and parentage so you can rotate wheels - all you have to do is to load object from scene without light sources, all settings should be loaded automaticaly.
You can modify quality of model with Object Properties of selected layer (Geometry -> Render SubPatch Level).
You can also load model without interior and change value of transparency of window glass textures.

Polygon / vertices counts:
subdivision=1 - 101168 / 120081

MAX(5),
Package includes maps and polygonal model - meshsmooth is applied and set to '1'. Wheels and interior are separated parts.

Polygon / vertices counts:
meshsmooth=0 - 101168 / 120081

3DS,
Package includes bitmaps and polygonal model with high, medium and low count of polygons. Wheels and interior are separated parts.

Polygon / vertices counts:
hi-poly - 1170157 / 610524
med-poly - 571172 / 305155
low-poly - 211781 / 119342

OBJ, XSI(3.5)
Package includes bitmaps and polygonal model with high, medium and low count of polygons. Wheels and interior are separated parts.

Polygon / vertices counts:
hi-poly - 583760 / 603345
med-poly - 282140 / 301369
low-poly - 101168 / 120081