The SSC Tuatara is a future supercar to be produced by SSC North America (formerly ShelbySuperCars Inc.).According to the manufacturer, the Tuatara will use an SSC designed billet aluminium Turbocharged 6.9-Litre V8 engine block that will redline at 9,200 rpm and deliver 1,350 hp (1,007 kW) and 1,280 lb·ft (1,735 N·m) at 6,800 rpm on 91 RON rated unleaded premium petrol. Its engine will be capable of 1,700 hp (1,268 kW) with emission controls removed. The car will weigh 2,750 pounds (1,250 kg) due to a carbon fiber construction (including the wheels) and aluminium crumple zones. This means it will manage a power-to-weight ratio of over 1,000 hp (746 kW) per tonne. The manufacturer claims the Tuatara will accelerate from a stop to 62 mph (100 km/h) in 2.3 seconds and the top speed is estimated to be 276 miles per hour (444 km/h).