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7Report: Mazda rotary reportedly at least a year behind schedule, but work continues

Renesis rotary engine in 2009 Mazda RX-8 – Click above for high-res image gallery

44Report: Mazda rotary reportedly at least a year behind schedule, but work continues

Renesis rotary engine in 2009 Mazda RX-8 – Click above for high-res image gallery

52AVL introduces its own Wankel rotary EV range-extender

It's starting to look more and more likely that the Wankel rotary engine could have a future as an electric vehicle range extender. Felix Wankel's original concept was once seen as having great potential because of its high power density compared to piston engines. Unfortunately, the manufacturing processes available in the 1960s and 1970s made it difficult to achieve adequate durability without high oil consumption and excessive emissions.

60FEV shows off RE-EV Fiat 500 with Wankel in Vienna

At last week's Vienna Motor Symposium, FEV was on hand showing off its LiiOn-drive Fiat 500 for ride and drives. We first saw this range extended electric vehicle last year at the Society of Automotive Engineers World Congress in Detroit.

25Geneva 2010: Audi A1 e-tron Wankels its way to the show floor

Audi A1 e-tron concept – Click above for high-res image gallery

26Geneva 2010: Audi A1 e-tron Wankels its way to the show floor

Audi A1 e-tron concept - Click above for high-res image gallery

43Geneva Preview: Audi A1 e-tron is extended-range EV with Wankel rotary generator

2011 Audi A1 – Click above for high-res image gallery

31Geneva Preview: Audi A1 e-tron extended range EV with Wankel rotary

2011 Audi A1 – Click above for high-res image gallery

55REPORT: Mazda's next-generation rotary needs more work

2009 Mazda RX-8 - Click above for high-res image gallery

16Mazda to further refine Wankel rotary engine for more efficiency?

Mazda's Wankel rotary engine has always been unique in the automotive landscape as a mass-produced internal combustion engine that eschews such unsightly items as pistons, valves and camshafts. The Wankel packs lots of power into a very small package, but one thing it's never been is fuel efficient, despite its relatively meager 1.3-liters of displacement. It seems the Japanese automaker is working hard to change that reputation with the next generation of the RX series.

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