A six - speed, electro - actuated gearbox (MC Shift) is mounted
in a
single unit with the limited slip rear
differential and connected to the engine via a rigid torque tube.
Front - wheel drive gives more interior space since the powertrain is a
single unit contained
in the engine compartment of the vehicle and there is no need to devote interior space for a driveshaft tunnel or rear
differential, increasing the volume available for passengers and cargo.
In recent years, a modified Volvo XC90 was created as a test bed for the single - speed eTwinster system, while a BMW M3 has been taken apart by GKN engineers to replace its conventional rear differential with a mechanical Twinster unit — the first setup that shows the benefits of twin - clutch torque vectoring and «true» sailing functionality in a purely rear - wheel drive vehicl
In recent years, a modified Volvo XC90 was created as a test bed for the
single - speed eTwinster system, while a BMW M3 has been taken apart by GKN engineers to replace its conventional rear
differential with a mechanical Twinster
unit — the first setup that shows the benefits of twin - clutch torque vectoring and «true» sailing functionality
in a purely rear - wheel drive vehicl
in a purely rear - wheel drive vehicle.