@ Steve
All these 'leccy car calculations can be a little misleading.
Whilst the motor is rated at 70kW the only interesting bit is the maximum battery output which is likely to be a hell of a lot lower, even when supplemented by the generator. This motor will have been chosen based on it's efficiency at delivering the correct performance in the rev range required and will not be expected to ever run at 70kW.
Secondly, the energy required to power a car at a consistent 30 mph on flat ground with no wind (i.e. resistance only generated by vehicles motion) is a lot lower than 20kW. I suspect it is lower than 10kW. 5-7kW feels about right.
Those changes then fit reasonably with the claims from the article. As always more specific details from the manufacturer would be appreciated.
Biting the hand that feeds IT
