7. Lamborghini Gallardo LP 550-2 Valentino Balboni
Many people claim to be Lamborghini nuts, but not everyone owns three classic models and have shaken hands with the Italian company's legendary test driver, Valentino Balboni.With that in mind, the LP 550-2 Gallardo was a no-brainer for Leno. Built to Balboni's exact specifications, the LP 550-2 deviates from the regular Gallardos. It ditches the four-wheel drive in favor of two, and it's it's much lighter thanks to the use of polycarbonates. Balboni has tested all the great Lambo's, and this is his swan song.