The Pontiac Solstice is a two-door roadster automobile produced by Pontiac from 2006 to 2009. It was powered by a naturally-aspirated 2.4-liter Ecotec I4 engine that generated 177 hp and 166 lb-ft of torque. The Solstice was available with either a 5-speed manual or a 5-speed automatic transmission. It was also equipped with 4-wheel disc brakes, air conditioning, a limited-slip differential, and a standard AM/FM/CD audio system.