Underground Racing has build up quite a reputation for mounting various supercars with a twin turbo setup. Their latest creation is based on a 2011 Lamborghini Gallardo LP570-4 Superleggera and dubbed the Underground Racing TT Lamborghini Superleggera LP 1000-4. TT stands for twin turbo and 1000-4 is the amount of horsepower it produces. Underground Racing lifted the total output of the Italian supercar from 570 to 1,000hp.
Underground Racing calls this the Stage 3 package and as an option this sports car can be fitted with HRE wheels.