The original, the classic. The car that Ken Block used in his first Gymkhana video was this Subaru Impreza WRX STI. Built by Vermont SportsCar and powered by a flat-four engine, this STI produces 565 horsepower and tips the scales at just 2,775 pounds. It was used extensively on the rally stage and Gumball 3000, but it truly made a name for itself in Gymkhana.