Hmm. What's your current avg. mpg. I have a 2001 Ranger that pretty easily gets 30 mpg on the freeway with just a little cautious driving. Try to keep it at 60 mph or below. Not that hard to do. Big rig speed limit here is 60 so I just tuck in behind the slowest one I can find. A 50 mile battery is going to cost a bit in weight. You figure the Chevy Volt has around a 35 mile electric range on its 16+kwh pack. That pack comes in at around 400 pounds. Plus the weight of whatever motor and associated controls you need. I like the other guys' idea of plopping the Ranger body down on the Prius frame. I wouldn't do it myself because I have too short of an attention span. But it does sound like fun.
JJ
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