The Acura NSX, sold outside North America as the Honda NSX, is a two -passenger, transverse -mounted mid -engine sports car introduced by Honda for the 1991 model year. Initially powered by a 3.0 -liter C30A V6 equipped with Hondas VTEC valve timing and lift control system, the first NSX for sale produced 270 horsepower and 210 pound feet of torque. The NSX was the first production car to use an all -aluminum semi -monocoque unit body, reducing the curb weight to just 3,010 pounds to improve performance and deliver its superb handling. Legendary Formula 1 driver Ayrton Senna contributed to the NSXs suspension development and tuning, testing the car on Japans Suzuka Circuit, and during development the Acura was benchmarked against more expensive automobiles from Ferrari, Lamborghini and Porsche.