What the BMW i3 is:
The BMW i3 is a small and light all-electric car being released for sale by BMW in 2014. The i3 is powered by a 125 kW motor and has a top speed of around 95 mph. It will be available in purely electric form with a 18.8 kWh battery, and also with a range extender, which is a small 2 cylinder engine that is used as a generator to recharge the batteries when they get low on power. The car should travel around 80 to 100 miles before the range extender (if equipped) kicks in. The range extender has a small tank and won’t massively increase the vehicles range, but should remove some of the typical electric car range anxiety.