Among Toyota's Yaris display at the New York Auto Show is a sporty-looking tuned-up version. The Yaris is Toyota's new, inexpensive subcompact, and with only 106 horsepower, it won't be seen on the racetrack. But Toyota Racing Development got a hold of this one and gave it a performance face-lift. This Yaris has Sparco seats, Nitto tires, and Volk wheels. The power train is still the standard 1.5-liter variable valve-timed four-cylinder, mated to a five-speed manual transmission. There is one surprise under the hood: a nitrous injection system.