Smart has improved its EV technology for the battery-powered versions of its ForTwo and ForFour with help from Renault. At 160 km, the Daimler subsidiary's electric drivetrain has a 10 percent longer range under the European testing regime than the previous powertrain. It also has a more powerful 60-kilowatt (81-hp) electric motor and 20 percent more torque at 160 Newton meters.