confused prius vs volt

These guys were trying to use this daily for comparison purposes, but not driving the cars the same way. The noise in the data is quite loud. I would assume other eco indicators would be more useful than just kwh, but

OK, I can see I was wrong here. I can see people wanting the info when they are geeking out. I am still surprised the prius doesn't give us normal information like an engine temperature gauge that does affect performance as the car is much more efficient when warmed up. A tach with archs about effieincy zones would also have me helpful, for that normal instrumentation you need obd