The SSC Tuatara /ˈtuətɑːrə/ is a sports car designed, developed and manufactured by American automobile manufacturer SSC North America (formerly Shelby SuperCars Inc.). The car is the successor to the Ultimate Aero and is the result of a design collaboration between Jason Castriota and SSC. Initially powered by a 6.9-liter twin-turbocharged V8 engine, the capacity of the engine was later reduced to 5.9 L (360.8 cu in) in order to allow the engine to have a higher redline of 8,800 rpm. SSC had stated that the power output would be rated at 1,350 hp (1,000 kW) or 1,750 hp (1,300 kW) on E85 fuel, along with a 300 mph (483 km/h) + top speed.