I find it interesting that they claim the inductive charging has no efficiency penalty. I've always heard that there is, and its not insignificant.
edit: a quick google finds this:
http://en.wikipedia.org/wiki/Inductive_charging
Quote:
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For example, the Magne Charge vehicle recharger system employed high-frequency induction to deliver high power at an efficiency of 86% (6.6 kW power delivery from a 7.68 kW power draw).[6]
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So, you have a ~15% efficiency penalty plus the 5-15% charger inefficiency. It starts adding up.
So, looking at the worst case, you got:
inductive charging: ~72%
direct charging: 85%
So, you're loosing 13% more to induction. 13% of say the Leaf's 24 kWh is just over 3kWh, not insignificant at all.