SCC tested the tyres under load before attempting the run.

Top speed records are pointless when nearly every public road has a speed limit. However, that doesn’t stop automakers from trying to go faster than the other guy, and SCC is no different. The company set a new record earlier this month with its Tuatara, averaging 316.11 miles per hour (508.73 kilometres per hour) over two bidirectional runs, and the supercar did its on stock rubber – Michelin Pilot Sport Cup 2 tyres.

CarThrottle.com interviewed SCC founder Jerod Shelby who told the publication that the Tuatara that completed the high-speed run did so on the car’s stock tyres, which is impressive. SCC tested the tyres at speeds the company knew the car could reach, providing the team with confidence that the tyres were safe at speeds that exceeded the tyre’s rating. Shelby also told the publication that the Tuatara used one set of tyres for the day’s pair of runs. SCC swapped out plain-old air for nitrogen and ran them at a higher pressure, too.

SCC took the Tuatara to the same stretch of highway – State Route 160 – outside of Las Vegas where Koenigsegg set the current record of 277.87 mph (447.87 kph) in November 2017. Professional race car driver Oliver Webb piloted the Tuatara to a new record, hitting 301.07 mph (484.54 kph) in one direction and an astounding 331.15 mpg (532.93 kph) in the other. Webb said the car was “still pulling well” at the top end, suggesting the Tuatara can reach even higher speeds.

The supercar doesn’t lack the power to do so. A twin-turbocharged 5.9-litre flat-plane crank V8 motivates the model. It produces 1,750 bhp (1,304 kilowatts) on E85. However, switching to 91 lowers that to a still astounding 1,350 bhp (1006 kW). The supercar is helped by its low dry weight of 1,247 kilograms (2,750 pounds) and slippery 0.279 drag coefficient. How long do you think SCC’s record will hold?