• Limited-edition track-focused supercar • One of only seven in Blue Mexico • Two owners from new • Less than 39,500 km on the odometer • Swiss registration document Somewhat confusingly, the seventh generation of Porsche's perennial 911 sports car was designated 'Type 991', succeeding the Type 997.

Introduced at the Frankfurt Motor Show in September 2011, the Type 991 is only the third all-new platform for the 911 since the original of 1963, the second being the Type 996 of 1999.

Its development overseen by Porsche's Chief Designer, Michael Mauer, the Type 991 represented a logical progression from the Type 997 and was slightly larger than its immediate predecessor while retaining the classic 911 look.

The most important chassis change was to the wheelbase, which increased in length by 100mm, while a new transaxle enabled the rear wheels to be relocated 76mm rearwards relative to the engine, improving both weight distribution and cornering performance.

Transmission options compris...