The Bugatti Veyron Super Sport is once again world's fastest car, one week after it was stripped of the title.
Guinness World Records officials withdrew the hypercar's title last week amid revelations that the car had been tampered with.
Bugatti engineers removed the car's speed limiter to allow it to reach 431km/h in 2010.
The records body said that "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 Consequently, the vehicle's record set at 431.072 km/h is no longer valid".
Officials backflipped after a technical review, and issued a statement saying they were "pleased to announce the confirmation of Bugatti's record of fastest production car".
"The focus of the review was with respect to what may constitute a modification to a car's standard specification," the statement says.
"Having evaluated all the necessary information, Guinness World Records is now satisfied that a change to the speed limiter does not alter the fundamental design of the car or its engine."
The topless Veyron Grand Sport Vitesse was named the world's fastest convertible recently when it hit 408km/h.
Drive correspondent Damien Reid had a steer of the Vitesse and found there "isn't a Ferrari, Lamborghini or McLaren that is even remotely in the same league as the Bugatti Veyron".
- Sydney Morning Herald
What sort of vehicle are you planning to buy next?Related story: Kiwis like multi-tasking cars
Gear up for that big holiday drive
Tips on how to do a safe river crossing
On the road and prepared for the cold snap