A bit noisy on the pixels (Especially the white line bugs me) If you could put the wheel motion to the others they will drive too. If they are supposed to be parked cars, I would suggest making a pavement and/or middle stripes. The effect on the road concrete is good.
Like family cars. Normal Mondeo: http://www.movebrugge.be/media/images/welkom/nieuwe_mondeo_5d_klein.jpg Estate mondeo: http://www.movebrugge.be/media/images/welkom/nieuwe_mondeo_klein.jpg
Don't remove the colour info! I was just wondering why you used so many? Looks to me like it could have been easily achieved with 32 colours.
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