Underground Racing, has prepared a highly modified Lamborghini Aventador, that features twin turbos on its 6-5 liter V12 engine, that now delivers 1,550 hp on the wheels. The car recently managed to reach 217.8 mph in half a mile, at an event in Maricopa of Arizona. The company offers a warranty of 2 years or 24,000 miles for its tuning package for the Italian super car.
