Even though it has clocked the fastest speeds on the planet, the Bugatti Veyron Super Sport is no longer the world's fastest production car — at least according to Guinness. Despite holding the world record since 2010, Bugatti was stripped of it after it was revealed by little known car maker Hennessey that the Veyron had its speed limiter deactivated in order to reach its top speed, a modification that was against Guinness' guidelines. Wired takes an in-depth look into what happened, who now holds the world record, and what Bugatti is doing to get it back.