Maybe have a large flywheel driving a shaft to the rear wheels rather than having mottoes om the wheels.
Didn't Audi win a big race with electric vehicles?
They shall be internal combustion engines of the reciprocating type!!!
Are you thinking of their diesel hybrid?
Audi e-Tron Quattro Diesel Hybrid Race Car Wins Le Mans 24 Hours Race
http://www.greencarreports.com/news/1085012_audi-e-tron-quattro-diesel-hybrid-race-car-wins-le-mans-24-hours-race
http://www.audi.co.uk/audi-innovation/audi-motorsport/audi-r18-etron-quattro.html