Vehicle with a drivetrain having a multiple clutch device

As a drive mechanism pulls/pushes and gears are changed between first and second gears assigned to first (20) and second (22) gearbox input shafts, first (26) and second (28) clutch assemblies assigned to first and second gearbox input shafts operate along with triggering a system-cum-drive unit for generating moment in such a way that during a gear-change constant moment occurs on a gearbox output shaft (54) or monotonic rise or fall in vehicle acceleration. An independent claim is also included for a drive mechanism in a motor vehicle with a system to generate moment, a gearbox with a synchronizing device and a twin-clutch device.