Porsche 911, Boxster and Cayman owners whose cars are fitted with PDK gearboxes can now order steering wheel-mounted paddle shifters as a retro-fit option.

Versions of the cars sold since August 2009 have had this option available from new, but Porsche has now decided to allow owners of older models to switch from the steering wheel-mounted buttons that PDK cars originally came with. The paddles are mounted to the three-spoke steering wheel taken from the new Porsche 911 Turbo.

From August, the retro-fit option will be open to Panamera and Cayenne owners. In Europe, the retro-fit option is available for 940 euros (Rs 55,000 approx) and prices for rest of the markets are expected to be announced shortly.

Porsche's Tequipment department is also offering three other retro-fit options for 911 owners, including the Fuchs wheel arches and 19-inch alloys taken from the limited-edition 911 Sport Classic model. The other options are inspired by the 911 race cars from the Porsche Supercup and include a new front aero kit and rear wing.