I think I read somewhere that the Volt is speed limited to 39mph in reverse. The Leaf was able to maintain a much more brisk pace. I believe somewhere around 60mph but that's of course not a hybrid.I have a theory to test if I had the money, resources, place (maybe an airport strip), and time. My theory is which is the world's fastest plug-in's speed in reverse? My guess would be the Chevy Volt which has the most powerful electric motor, since none of the hybrids can use their gas engines to supply horsepower (except for electrical power generation).