Ultima has completely reinvented the notion of a kit car. No longer is a kit a flashy body slapped onto an old VW chassis. What Ultima has created is a truly world-class supercar that has reset acceleration and deceleration records and taken top honors for the fastest lap time set by a road–worthy production car on the Top Gear circuit (a full four seconds faster than the Koenigsegg’s CCX). Yeah, and you build it yourself. The GTR720’s 720 horsepower are mated to a total chassis weight of less than 2,200 pounds. That power-to-weight ratio will rocket you to 60mph in less than three seconds and is into the 9’s on the quarter mile. At a glance, the GTR may seem a bit simplistic, but the performance and design will take you where others cars only aspire. The Ultima GTR is that rarest of automotive beasts: an ultimate track day car that is still street legal at a fraction of the cost of an equivalent supercar.