Speed records are being broken all the time by street legal cars. All the time being every few years, and that's just how long it takes for a new breed of suped-up muscle car or sports car with insane horsepower to break onto the scene and smash another world record. We go to names like Lamborghini and Ferrari, Porche and Aston Martin when thinking of the fastest street cars. Lately, it's been Bugatti, even going up against fighter jets in a head to head race. How long until the next speed record is beaten?