Complex sentence: VTD AWD uses a multi-plate clutch in conjunction with planetary gears in the center differential and a viscous coupling rear differential to distribute torque up to a 50:50 ratio, with the addition of VDC all torque can be sent to a single wheel.
Split into simpler sentences: VTD AWD uses a multi-plate clutch in conjunction with planetary gears in the center differential and a viscous coupling rear differential to distribute torque up to a 50:50 ratio. With the addition of VDC, all torque can be sent to a single wheel.