Hello -
If you've got the bandwidth then I think the video-demos are worth watching :
NuVinci Technology (Video) Demonstration(s)
I like the claimed scalability, from bicycles to cars to wind power. I'm a retrofit fan, so scalability is a must from my POV. If I were them I would market to the performance crowd first to get the sales going. I am guessing that performance enthusiasts would wring out the bugs too.
CarloSW2