[Joe Beerman]

What's wrong with the Wankle?

There's nothing wrong with the Wankle. CAFE restrictions make it difficult to produce an economical rotary engine. They have a high power to weight ratio, but use more fuel than a reciprocating engine of the same power. The seals wear fast and rebuilds at 30,000 are not unusual. Great performance engine, but high maintenance. If you take good care of your rotary you can make them last, but most people won't do that.
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[midwestmidnight]

I have an '84 RX7 with 147,000 miles on it. I've never rebuilt it and I drive it regularly. When it was new in '84 it was quicker to 60 mph than the '84 Corvette. I'll stick with my 1.3 liter Rotary. Hummmmmmmmmmmmmmmmm!