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      04-12-2015, 02:02 PM   #13
JasH
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Drives: McLaren & Ferrari & i8 & i3
Join Date: Jul 2014
Location: Kent, UK

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To be fair guys, I don't think BMW misrepresented electric range at all.

First of all, to maximise range you would need a basic i8. No extras, especially the wheels. That minimises weight and rolling resistance.

Secondly, you would need to test in optimum conditions, as the claim is "up to x miles". So, ideal temperature, constant speed, smooth surface, no wind, flat surface, eco pro mode and no use of fans etc. Probably a circular track too. It wouldn't surprise me if well over 25+ miles were achieved like that.

Remember that accelerating and slowing (regenerating) is inefficient, so it would be most important to keep rolling.