Bugatti unveils one-of-a-kind supercar to celebrate first road legal car to top 300mph - which is expected to fetch over $4m

Bugatti has unveiled its newly designed Chiron L'Ultime as it prepares to shelve the world's first 300-mile-per-hour supercar.

The French supercar manufacturer had always intended to sell just 500 units, with each one designed to meet the individual buyers' vision.

The L'Ultime is the final model in the Chiron series which has set the bar for sports cars since it was introduced as the fastest car ever made in 2016.

This is the 500th and final edition of the Chiron which comes in a bespoke blend of 'Atlantic Blue' and 'French Racing Blue' with hand-stitched details and a prominent '500' displayed across the car's exterior.

Bugatti still hasn't disclosed the cost of the L'Ultime, but the 2023 Chiron Profilèe's hefty price tag of $3.7 million suggests this final edition could fetch a much higher price.

The L'Ultime, which translates to 'the last one,' was co-created with the owner to mirror the first edition and symbolize 'the brand's prowess and the evolution of its craft and savoir-faire in the past eight years.'

The customer's name has not been released but Bugatti reported that along with the company's Sur Mesure team, they wanted to 'create an homage' to the importance of the car series by 'retracing the most incredible milestones of the Chiron as well as celebrating the most important moments in the brand’s history... from its debut in 2016 to the present day.'

To celebrate the last Chiron model, the hand-written number '500' is engraved on the wheel caps, rear wing and engine cover which encloses the Bugatti W16 powertrain.

A powertrain generates power from the engine and delivers it to the wheels, allowing it to go from zero to 60 miles per hour in just 2.3 seconds and gives it a top speed of 300.

Every aspect of the interior was hand-stitched from the seats and steering wheel to the carbon-fiber mat and the deep blue leather on each door panel.

'The Bugatti brand is built not only on pure performance but on absolute craftsmanship, sophistication and elegance,' said Bugatti President Christophe Piochon.

'With this bespoke work of art, we have retraced the Chiron's majestic eight-year journey with unforgettable moments that have taken place throughout the world, ... not to mention its countless industry-first breakthroughs and world-first achievements,' he continued.

'This 500th and final Chiron model is a fitting farewell that captures a defining legacy that will forever be etched in automotive history.'

Bugatti's Chirons have sold for between $2 and $4 million, showing the exclusivity of owning one of the elite vehicles.

A one-of-a-kind pre-production version of the Profilèe that had never been intended to be sold was auctioned off in February of last year for a record-breaking $10.7 million - making it the most expensive car ever sold at auction. 

The Bugatti Chiron series is a favorite among some major celebrities including Madrid soccer player Cristiano Ronaldo, retired NFL player Tom Brady, 'Top Gun' actor Tom Cruise and English model and author Katie Price.

The Chiron was named after legendary racecar driver Louis Chiron who won nearly all major Grand Prix competitions for Bugatti in the 1920s and 1930s. 

'The Chiron will set new standards in every respect. We will continue to produce the world's most powerful, fastest, most luxurious and most exclusive production super sports car,' then-Bugatti President Wolfgang Dürheimer said at the time. 

'In Louis Chiron, we found a worthy patron for a new model in the history of our brand,' he continued.

'The name of the best racing driver and the most successful Bugatti driver of his time for the best super sports car of the present day – that is the ideal combination.'