The Quattroporte was ordered by French importer ‘Agence Maserati’ and delivered to His Highness Prince Karim Aga Khan in Paris on 4th January 1968. It was then registered to Princess Aly Khan at 76 Eaton Square London, where it now met with Maserati’s new flagship, luxury four door saloon, the Quattroporte S.

The car will go under the hammer at Coys Spring Classics auction at the Royal Horticultural Society in London and is estimated at £38,000-£42,000.

Chris Routledge, Managing Partner of Coys, said: “This is certainly the rarest, most important and stunningly original Quattroporte. This car is one of only eight right hand drive examples produced, with just 28,300 miles and two owners from new.”

He added: “The extraordinary low mileage and detailed history file along with ownership history from one of the most evocative names of the 20th century, make this not only an exceptional Quattroporte but also a fine investment opportunity that should not to be missed.”

The Quattroporte remained in the Princess’ ownership for a further 25 years, during which time the she re-married to the 2nd Viscount Camrose, the former chairman of the Daily Telegraph, and was latterly known as Lady Camrose.

In this period, it went into dry storage, but was still frequently driven around the Hackwood estate. It was subsequently purchased direct from Lady Camrose by the second and current owner in 1993.

The car is in original condition inside and out, comes with the original tool kit and even the original logbook with Princess Aly Khan listed as the first owner. It has been well maintained, including an engine rebuild by Maserati specialists in 1999, and is supplied with many other bills for maintenance work.

The Maserati Quattroporte is now on display at H.R. Owen Maserati (25-27 Old Brompton Road, London SW7 3TD) until the morning of Monday 9th March.