i8 ยังเป็น hybrid อยู่ครับ ไม่ใช้รถไฟฟ้า 100%
The BMW i8 is planned to go on sale in the UK in 2013 with a newly developed petrol-electric hybrid drive system. This allows it to run individually on either pure electric power or a combination of traditional combustion engine and electric power, depending on driving conditions and the state of battery charge.
The i8 has ditched Vision EDs three-cylinder 1.5-litre diesel engine in favour of a direct-injection petrol engine of the same capacity. This engine is earmarked for the next-gen Mini range from 2012 and the new front-drive 1-series in 2014.
With 220bhp and 221lb ft of torque, the new petrol unit operates in combination with a 129bhp, 184lb ft electric motor for an overall output of 349bhp and 405lb ft.
As with the Vision ED concept, the petrol engine is mounted at the rear and drives the rear wheels via a dual-clutch gearbox. The electric motor is sited up front and acts on the front wheels through a twin-speed transmission.