Last year, Hennessey Performance took their highly-modified Ford GT out on an empty piece of tarmac, at the Texas Mile, and they managed to push the custom twin-turbo supercar all the way up to 257.7 mph or 412.3 km/h. This year, they've tried again, and with several improvements to the car, the speed achieved was higher, as the GT crossed the mile marker at 267.6 mph (428.1 km/h), rivaling the Bugatti Veyron SS for sheer speed. Read more »
