Ironically it also is the speed where my xB gets really good mileage also. Must be an engine load and gearing sweet spot. Next you pop it in neutral and coast down and rack up some extra mileage. BTW floor it and see what it does i.e. check out the max speed.
I forgot and left my simulator running all night and all day up until a few minutes ago. It's reading 826 miles and the mpg is at 66.0 and the speed is at 39 mph. The current mpg is at 66.4. It could be an addicting little simulator.
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Horsepower is how hard you hit the wall, torque is how much of the wall you take with you.
based off the 1st gen prius in japan (97-00)... boy i still crave for that model (classic prius 01-03 that is)... pulsing and gliding on that simluator nets me a 74.5 mpg trip. If anyone can beat my score feel free! Oh and my battery charge is 50% by the way, didn't have to force charge once! and its over 3.9 miles
I just got a 79.0 after 3.9 miles and the battery was at just a tick or two over 50%. I could see this as being very addictive!
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Horsepower is how hard you hit the wall, torque is how much of the wall you take with you.