Mitsubishi will introduce a double-clutch gearbox on the Lancer Evolution X, sources say.

The supersaloon is set for launch in a year, which should make Mitsubishi the first manufacturer to respond to VW's pioneering transmission. BMW and Porsche are among the car makers who are also working on rival gearboxes.

DSG stands for direct-shift gearbox. It has twin clutches, which enable two gears to be selected simultaneously. While one gear is engaged, a second cog