I bought a Saris Bones2 and it works fine. A word of warning though that the clips (all six) and the feet will damage the paint pretty quickly by grinding dirt into the surface. I put a strip of "helicopter tape" along the bumper top surface and where the clips go. Works good so far...
Interesting. Certainly IV = Watts, but when I googled "IVM 60", since I didn't know what it meant I saw usage as "Initial Vehicle Movement" to 60 mph. I assumed they were getting 0-60 times without driver reactions in the measurement. I guess it could be either way!
Very interesting presentation; thanks for sharing! I'm a bit confused by the thought "there's no clarity to what the gear ratio change will be on performance" On page 7 there appears to be a graph showing the Spark EV range vs 0-60 times with both axle ratios. Looks like the new 3.87 is about...