Highlights Well specified second phase Turbo Cabriolet 493bhp, 3.8-litre twin-turbo flat-six engine 0-60mph in 3.2s Excellent Porsche main dealer and specialist service history Low mileage In excellent condition throughout Optioned extended Leather Overview When Porsche strapped a turbocharger to its seminal 911 model in the 1970s it changed the game forever and ever since, forced induction has played a major role in every single generation to date.

When you see that “turbo” badge on the boot lid you know you're in for a treat.

So with myriad turbo models to choose from, whether it be the original 930 or the current 631bhp Turbo S, it can be difficult to know which one to go for.

Well, a lot of people would argue that the 997 is the sweet spot between the old school widowmakers and the new breed of tech-laden 911s, and they may very well be right.

Debuting in 2004 the sixth generation of Porsche's flagship turbo model combined excellent handling with blistering performance and prov...