In 2019, the Bugatti Chiron Super Sport 300+ became the first production car to drive 300 mph. This was almost 15 years after the Bugatti Veyron became the first to reach 250 mph. So why did it take so long for automakers to build a car 100 mph faster? We explore what makes 300 mph such a difficult benchmark to reach and what automakers like Bugatti have been doing to chase it.