Quote:
Originally Posted by aerohead
I realize that the EPA has allowed automakers to use a 135-mpg value for hybrids when calculating fleet-averaged CAFE numbers,but that doesn't mean that consumers could ever hope to see numbers like this.
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I don't see why this should be impossible. My Insight gets over 70, using an inherently inefficient IC engine. Replace that with a more efficient turbine or Stirling engine, make it a plug-in with the powerplant running at constant load, and you're there.
Even with its current IC engine, there are periods of cruising on the level where the lean-burn kicks in, and mpg goes well over 100. Add enough battery capacity to handle acceleration and stay in lean-burn most of the time, and you're close.