Click to view the '66 Fiat 500 Giannini Tony Stewart
This original 1966 Fiat 500 has been tuned by Italian racing garage Giannini, with a tiny 700cc two-cylinder engine capable of taking the quaint little Italian up to 100 mph and return a staggering 60+ mpg. To set it apart from ordinary Cinquecentos, this example has been decked out in decals mimicking Tony Stewart's NASCAR racer, ready to cheer from the sidelines at the Piston Cup. The car was listed in excellent condition with no rust, and recently sold on eBay for just $7,700. Check out the images in the gallery below.