Five-clutch hybrid for Cadillac

GM has released more details of its 335kW, sub- 2.0L/100km-rated petrol-electric hybrid system for the Chinese-built Cadillac CT6. The ‘electrically variable’ rear-drive system uses two electric motors, three planetary gears and five clutches linked to a turbocharged 2.0-litre four-cylinder engine. GM says the system can deliver up to 5000Nm of torque (that’s not a typo) and blast from 0-100km/h in 5.6sec. The revelations come as the carmaker switches the name of its engine division from GM Powertrain to the more hybrid/ electric-friendly GM Global Propulsion Systems.