The Fiat 500 Abarth is one hell of a package straight off the factory floor. With a turbocharged 1.4-liter four under the hood, the little Abarth is what you graduate to once you realize it's not a good idea to take a high-powered go-kart out into traffic. But what if you want more than the stock Abarth? What if there was a way for you to add somewhere along the lines of an additional 80 horsepower solely for racing purposes? Turns out that it's entirely possible and 500 Abarth owner Jay Leno is here today showing off a pair of custom models.

Along with some power upgrades, Robert Tallini of Road Race Motorsports has modified a few Abarths with racing bits like a roll cage and some carbon-fiber body work. Not only can these cars do some damage at the track, they're also street legal.