Forget about fooling around with mundane cars like Chevys or BMWs; if you really want to waste some time then you might as well to do it for a vehicle that chances are, you'll never, ever be able to obtain. A good example is Buggati's online Veyron 16.4 configurator that consumed about 20 minutes of our time as we were trying to create the worst possible color combination for the supercar's exterior and interior - this is the best we could come up with. As a true uber-upscale brand, Bugatti offers viewers/players a downloadable PDF file with photos of 'your' personal Veyron 16.4.
Grazie for the tip Alessandro! Link: Bugatti