Petra Ecclestone's billionaire husband James Stunt gets his hands on his latest toy: 819hp Lamborghini Aventador 750-4 SV Mansory JS 1 Edition

The husband of Petra Ecclestone has taken delivery of a unique £3.1million Lamborghini supercar to add to his growing collection of flashy motors.

Billionaire art collector James Stunt, well-known for travelling around London with a cavalcade of blacked out Rolls-Royce Phantoms, is regularly spotted visiting Harrods and various high-end auction houses like Sotheby’s while surrounded by bodyguards.

Now Mr Stunt, whose father-in-law is Formula One chief executive Bernie Ecclestone, has bought his most spectacular model yet – a one-off carbon fibre Lamborghini Aventador which has been customised by German firm Mansory.

The husband of Petra Ecclestone has taken delivery of a £3.1million Lamborghini supercar (pictured) to add to his growing collection

Flash: Billionaire art collector James Stunt, whose father-in-law is Formula One chief executive Bernie Ecclestone, has bought a one-off carbon fibre Lamborghini Aventador which has been customised by German firm Mansory. The interior of the J.S. 1 Edition is pictured

The J.S. 1 Edition makes the Lamborghini Aventador driven by Bruce Wayne in The Dark Knight Rises look understated.

It is capable of doing 0-60mph in just 2.7 seconds and accelerating to 220mph thanks to its 830bhp engine, which has been specially upgraded for Mr Stunt from the standard 750bhp. The maximum thrust rises from an imposing 690 to 750 nm.

The redesigned front of the J.S.1 Edition is also crafted from a carbon fabric to give it its stealth. With a new spoiler lip on the front, there are a number of aerodynamic changes which have been made to give additional downforce.

A diffuser and an enlarged and more powerful spoiler at the back are also special modifications which give aerodynamic advantages, while Mr Stunt’s unique Lamborghini comes complete with a new exhaust system including manifold, muffler and tailpipes.

The supercar is the 21st car Mr Stunt has ordered from Mansory, with the Lamborghini joining a fleet which includes Range Rovers, Rolls-Royces and Bentleys.

Video: Take a look at the sexy Lamborghini Aventado supercar

Mark: Most of Mr Stunt’s cars are fitted with personalised plates, including his new Lamborghini (pictured), reflecting their owner’s name

The supercar is the 21st car Mr Stunt has ordered from Mansory, with the Lamborghini joining a fleet which includes Range Rovers, Rolls-Royces and Bentleys

James Stunt (pictured left with the husband of his wife’s sister, Jay Rutland, and right with Petra), is well-known for travelling around London with a cavalcade of blacked out Rolls-Royce Phantoms. He is often spotted visiting Harrods and various high-end auction houses

Fast: The supercar is capable of doing 0-62mph in just 2.7 seconds and accelerating all the way to 220mph thanks to its 830bhp engine

Most of his cars are fitted with personalised plates reflecting their owner’s name.

Mansory would not confirm the exact value of the car but it is understood to be worth in the region of £3.1million.

A statement from the firm said: ‘Someone like Stunt is constantly on the lookout for something special owned by no one but him.

‘The J.S.1 Edition by Mansory is covered by a tailor-made carbon fibre shell that meets the highest demands on looks and aerodynamics – and meets in full the strict demands of James Stunt.’