to go along with the new engine unit such as enhanced cooling, transmission upgrades as well as a seven-speed paddle-shifted gearbox. The engine is officially rated at 1,300 horsepower and 1,004 pound-feet of torque. 2013 - A Prototype SSC Tuatara is unveiled at the Dubai International Motor Show and titled the "Crown Jewel" of the event. 2015 - Last Ultimate Aero XT is delivered and production of the model is completed. 2018 - SSC North America announces release of 2019 SSC Tuatara at Pebble Beach Concours d'Elegance. 2019 - Tuatara production underway with first deliveries anticipated for Q3 2019. January 2020 - First production Tuatara is delivered to its owner in Philadelphia, PA. October 10, 2020 - SSC North America conducts its first high speed test in Pahrump, NV, initially claiming an average top speed of 316.1 mph. This claim was later retracted when discrepancies between satellite data and video analysis indicated a discrepancy in the speed. CEO Jerod Shelby publicly addressed the mistakes and promised further testing to rely on more redundancies and transparency. January 17, 2021 - Continued high speed testing of the Tuatara at Kennedy Space Center's Shuttle Landing Facility produced an average top speed of on a 2.5 mile stretch of runway (Northbound: , Southbound: ). The high speed runs were driven by the owner of the Tuatara, Larry Caplin, a non-professional driver. Present at the test was Race Logic, an automotive telemetry firm, and independent analyst Robert Mitchell, who was one of most outspoken critics of SSC's October 2020 speed claim. May 14, 2022 - Larry Caplin’s Tuatara reached a one-way speed of over the course of at Space Florida's Launch and Landing Facility. This was verified by two Racelogic VBOX GNSS and a Life Racing GPS speed measurement systems, as well as a Racelogic technician on hand. Models SSC Ultimate Aero The first prototype SSC Ultimate Aero was completed in 2004. The two original prototypes were equipped with a supercharged 377.6 cu in (6,188 cc) Chevrolet Corvette C5R V8 engine. The supercharged engines originally produced 782 horsepower but were eventually modified to produce up to 908 horsepower with theoretical top speeds of up to 242 mph (390 km/h). Following the original two prototypes, SSC replaced the supercharged engine with a new twin-turbo V8 that eventually produced 1,287 horsepower. The twin-turbo setup can be found in the majority of the SSC Ultimate Aeros produced. On