Simply amazing, Capstone claims 80-90% efficiency for their lineup of turbines, that is simply fantastic. Now I assume yes, bu do they come with built in generator? If the 30kw unit is light enough, and cheap enough, I am for sure going to consider it for my next electric conversion, which will be an AWD Skyline model most likely, if not, then a 4WD truck, such as a Toyota Tacoma.
I have 4 extra Siemens AC drives sittings around, which are each capable of 200kW(270hp) if driven by the right Inverter/Controller. That should make any car or truck a blast to drive.
Using some sort of power buffer, be it ultra caps, preferably not as the gen. set would run 100% of the time then. Or a powerful durable battery such as an A123 pack, or if you have more cost effective cell please share.