REVERED by enthusiasts the world over, the Porsche 911 Turbo has turned 40 years old.

Since it first went on sale in 1974, the 911 Turbo has beeen an object of desire for car buffs of all ages from schoolboys to senior citizens and is renowned as a benchmark high performance sports coupé.

Now, to celebrate the iconic sports car's birthday, Porsche has unveiled the 911 Turbo S Exclusive GB Edition which is unique to the UK and will be offered in a limited run of just 40 examples, priced from £150,237.

As you might expect from the price tag, this is one object of desire which will leave little to be desired. Powered by a 560 hp flat six-cylinder twin-turbocharged engine it will sprint from 0 to 62 mph in just 3.1 seconds and on to a top speed of 197 mph.

Below the lissome bodywork, which still bears more than a passing resemblance to the original, there's an all-wheel drive chassis with active rear axle steering, adaptive aerodynamics, Porsche's Dynamic Chassis Control (PDCC) active anti-roll system and a Sport Chrono Package Plus incorporating dynamic engine mounts and Porsche Ceramic Composite Brakes (PCCB),

In profile, the Exclusive GB Edition shows a clear link to the first 911 Turbo - the black rear upper spoiler, Sport Classic wheels in black, black finished exterior door handles, and the black 'Porsche' script along the sills pay homage to its illustrious forebear. Inside, the black leather upholstery features Guards Red contrasting stitching and unique highlights include an embossed Union flag on the centre storage compartment lid.

Available to order now, each car will be delivered together with a personal photo book documenting the production process, a bespoke Exclusive GB Edition indoor car cover and unique design sketches.