Guinness World Records returned the "World's Fastest Production Car" title to Bugatti Veyron Super Sport after Hennessey Performance claimed that Bugatti had deactivated a 258 mph speed limiter to set the record in violation of Guinness official guidelines, reports Fox News.

Bugatti Veyron Super Sport had clocked 267.8 mph to set the record in 2010, but Hennessey said that Venom GT was the true deserver of the title as the Bugatti Veyrons, built with a speed limiter at 258 mph for safety measures, set the record by removing the limiter. In defense, Bugatti senior spokesperson said that the owners of all Super Sports have the option to unlock the speed limiter at any special event by the company to test the top speed of Super Sport. Moreover, five customers received their Veyron Super Sports with the speed limiter unlocked. Furthermore, it claimed that Guinness was aware of the limiter when the record was set, according to the report.

Guinness World Records conducted a thorough review and confirmed that the unlocking of the speed limiter "does not alter the fundamental design of the car or its engine." Hence, Bugatti continues to remain the "World's Fastest" car. Besides, Bugatti also set another record for the "World's Fastest Open-Top Production Car" with the Veyron Grand Sport Vitesse convertible traveling at a speed of 254 mph. Guinness currently lacks this category of record, hence it was not a part of this competition.

John Hennessey noted that Venom GT, $1.2 million 1,244 horsepower supercoupe, clocked a top speed of  265.7 mph. He said that his production car has the potential to touch 275 mph, and will prove it at a suitable venue.

On the other hand, Bugatti announced earlier this week, that it will unveil "the latest example of exceptional Bugatti performance." It is rumored that Bugatti is in the midst of producing a 1,600 horsepower Super Veyron, which is likely to clock 288 mph top speed.