With its stonking 4.2 litre twin-turbo diesel V8 beneath its bonnet that produces 380bhp and, deep breath, 626lb ft of torque, this Diesel S Cayenne is a complete rocket ship! With the optional Sport Chrono pack fitted and its eight-speed paddle-shift automatic gearbox set to Sport Plus mode, it can hit 62mph from rest in a mere 5.3 seconds and, even more incredibly, will waft its way to 100mph in just 12.8sec. And that makes it faster, even, than the original petrol Cayenne Turbo that so completely blew our minds on its debut in 2002. Porsche didn't just stopped at the powertrain with its range of upgrades to the Cayenne, though. Also fresh and noteworthy were the styling updates front and rear that have stood the test of time. These included new LED lights at the back and a less deep but more potent-looking grille at the front. Likewise, the suspension was tweaked extensively to deliver yet more control on and off road, both electronically and via its hardware thanks to alterations to the pick-up points front and rear. And inside it's now genuinely hard to find much fault with the Cayenne's mix of quality, technology, logistics and architecture. Or its packaging, space in the rear seats and boot being as good as it gets within this class. What's it like? This Porsche Cayenne S diesel backs up its Santa Pod-style acceleration with a combined economy figure of 35.3mpg and CO2 emissions of 209g/km. Which, broadly speaking, means it is twice as economical as the first Cayenne Turbo, and less than half as bad for the planet into the bargain. On the road the S diesel really is a remarkably competent car. It feels as fast as it is agile, as refined as it is rampant, if and when you find the space to bury your foot in the carpet and hold it there for a while. It also rides far better than before in its Comfort setting thanks mainly to several software tweaks, Porsche says, and yet it feels sharper and more alert than ever in Sport. Porsche claims that the Cayenne's twin-turbo diesel V8 engine provides the normal advantages of a tradition diesel engine unmatchable economy, in a nutshell with the emotional appeal of a petrol engine. We'd agree, it even sounds like a proper rumbly V8! To make this vehicle extra special it comes with over £26k of optional extra's and a superb service record. For more info please conatct one of the team!