Last I heard Audi hadn't cancelled the A1 E-Tron with a plug-in Wankel, http://www.audi.com/com/brand/en/tools/news/pool/2010/03/audi_a1_e-tron___electric.html
"The A1 e-tron concept car has a Wankel engine as a range extender, but other compact concepts are also possible. The small single-rotor Wankel has a chamber volume of 254 cc and runs at a constant 5,000 rpm in its peak efficiency window.".
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Last I heard Audi hadn't cancelled the A1 E-Tron with a plug-in Wankel, http://www.audi.com/com/brand/en/tools/news/pool/2010/03/audi_a1_e-tron___electric.html "The A1 e-tron concept car has a Wankel engine as a range extender, but other compact concepts are also possible. The small single-rotor Wankel has a chamber volume of 254 cc and runs at a constant 5,000 rpm in its peak efficiency window.".