What Car Q&A: April 2010 - What cars have DSG gearboxes?
A) The DSG (Direct-Shift Gearbox) is a semi-automatic gearbox available on a number of VW Group cars, including Audi, Seat, Skoda and Volkswagen.
Dual-clutch transmissions offer near-instantaneous gearchanges and they’re also more fuel efficient than conventional automatic gearboxes because less energy is wasted transferring the engine’s power to the wheels.
The DSG was the first dual-clutch transmission (where one clutch controls the odd gears and the other the even ones for super-fast changes) in the UK when it was fitted to the Audi TT from 2003. However, many newer VW Group models use a seven-speed version, rather than the six-speed system fitted to early cars.
Plenty of other manufacturers have since developed DSG-style gearboxes, with their own names and acronyms, and fitted them to specific models. These include:
BMW (DCT) 3 Series Coupé, M3, Z4
Citroen (DCS) C-Crosser
Ford (Powershift) C-Max, Focus, Galaxy, S-Max
Mitsubishi (SST) Evo X
Peugeot (DCS) 4007
Porsche (PDK) 911, Boxster, Cayman, Panamera
Volvo (Powershift) C30, S40, V50
Soon, Alfa Romeo will launch a twin-clutch gearbox called TCT in the Mito, and Mercedes-Benz will offer the SLS with its Speedshift ’box.