I was hoping/figuring they'd know who you should call... good stuff.
In terms of power 12 hp isn't bad, but I'd almost consider that as what you need per person, and in that regard perhaps consider the Swift as something along the lines of a 2, 3 or 4 seater. With 400 amps and 72 volts, you'd have a 36 hp very green solution for my daily commute. I'll even clean the garage out for it!
I ride a 10 car commuter train that holds 1200 people and the locomotive has about 5000 hp. That's 12 hp per person. It's gets up to 85 mph/140 kph pretty quick, but unfortunately has to rely upon massive disk brakes instead of regen, and I worry about commuter train asbestiosis - who know what's in those pads? Back to motive power though, most scooters with around 12 hp seem to work quite well.
It's funny when I think about the 9.1 KW peak energy. At 3413 BTUs per kWh, that rate of heat (30,000 BTUs) would make a good water heater (double the recovery of a normal electric water heater), keep a mid-sized normally insulated Canadian home warm in all but the coldest of weather or heat an outdoor BBQ grill.