I assume you mean the i8? A quick Google says it never had a range extender option. The i3 is very much not a competitor on performance, it's a city runabout -

I assume you mean the i8? A quick Google says it never had a range extender option. The i3 is very much not a competitor on performance, it's a city runabout - the earlier/USA models had complaints (and a lawsuit) that the generator was not strong enough even for that use, although Europe/more recent models don't seem to have the same complaints. Maybe the range extender concept couldn't apply to a more performance oriented car without an impractically big/heavy generator?