There is no way my car could ever do 80+ mpg at any speed without P&G.
Hybrids (some at least) do p&g, just in a different way. The Prius, for example. It runs the engine at it's efficiency peak. If that's more power than needed right now, the extra goes to charging the battery pack. If it's not enough power, it draws some off the pack to the motor for the extra needed. It's seamless and smooth and brilliant.
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11-mile commute: 100 mpg - - - Tank: 90.2 mpg / 1191 miles
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