"It has come to the attention of Guinness World Records that there was an oversight in its adjudication of the 'Fastest production car' which was set in 2010 by the Bugatti Veyron 16.4 Super Sport," Jaime Strang, GWR's PR director, said in a statement to UK's Sunday Times.
"As the car's speed limiter was deactivated, this modification was against the official guidelines. Consequently, the vehicle's record set at 431.072 km/h is no longer valid. Following this, Guinness World Records is reviewing this category with expert external consultants to ensure our records fairly reflect achievements in this field," he added.
Jaime is referring to the fact that the production Bugatti Veyron is sold with an electronically limited top speed of 415 km/h (258 mph), which means it's not mechanically identical to the car that set the record three years ago. In fact, this inaccuracy was pointed out by Hennessey, who claims the Elise-based Venom GT to be the fastest production car at 427.6 km/h (265.7 mph).
Before the Bugatti Veyron became the world's fastest production car, the Shelby Supercars' Ultimate Aero held the title with a speed of 412.1 km/h (256.1 mph).