Challenging, uncompromising, totally analogue: the Carrera GT is all of the above and much more.

With an estimated selling price of £400,000-£450,000 ($560,000-$630,000), one of the 1,270 units produced by Porsche will go under the hammer at Silverstone Auctions’ Race Retro International Historic Motorsport Show, in Stoneleigh Park, Coventry, on February 28.

Some of the features found on the GT Silver Metallic-finished exotic include carbon ceramic brakes, a Bose HiFi, sat-nav and even a luggage set.

A 2004 model, it was delivered new by a Florida-based dealer. Two owners and five years later, the 612 PS (603 hp) supercar was exported to the UK and acquired by a collector in Gloucester, who kept it for a while and then sold it to Genii Capital chairman, and former Lotus F1 team owner, Gerard Lopez.

In 2014, the Carrera GT was sent to RUF in Germany, where it was equipped with a suspension raising system for €11,900 ($13,000), improving its driveability on UK roads. It was last serviced in November 2015 at Porsche Reading, when its clock indicated 18,018 miles (28,997 km).

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