BMW i3 REx is powered by 155 cc engine. This i3 REx engine generates a power of 170 HP @ 0 RPM and a torque of 250 Nm @ 0 RPM. i3 REx gets brakes in the front and rear. Performance of i3 REx is backed by a Automatic transmission. The engine is mated to a Automatic gearbox. The kerb weight of i3 REx is 647 cc. i3 REx has 3999 mm Length, 1775 mm Width, 1578 mm Height, Ground Clearance.