IT’S the car that broke the mould at Porsche by becoming the German auto maker’s first four-door model and SUV.

That was some 20 years ago – and the Cayenne has gone on to become one of the brand’s top sellers.

Now it is in its third generation and has gone on to notch up well over a million sales since its launch in 2002.

It has also become a trailblazer – and pace-setter – for the brand which built its reputation on performance cars.

For an SUV, the Cayenne has become a legend – a full-blown off-roader yet with a turn of speed that would not shame a supercar.

The current version is available in a variety of guises ranging from 3.0-litre V6s to mighty twin-turbo 4.0-litre V8s pushing out an awesome 640ps.

Bring in some electrification in the form of plug-in hybrid power and that output can be increased to a whopping 700ps.

With a blistering 0 to 62mph acceleration time of just 3.3 seconds and a top speed of 186mph the Cayenne Turbo GT is the quickest of the current line-up and is a 2.3-tonne SUV that can show a clean pair of heels to many a Ferrari.

The Turbo GT is the flagship Cayenne and priced from £147,510 – a figure more than double that of the entry level model in the current range.

Sumptuously appointed, the Turbo GT is the epitome of the model that transformed Porsche’s fortunes in a new world of automotive design and manufacture.

The Turbo GT we sampled came with almost £9,000 of extras fitted…