A while ago a mysterious Acura sports car was caught on the movie set for The Avengers. Now, rumors about that mystery prototype suggest that some of its design elements will be used for the long rumored Honda NSX supercar. Recently, the Acura->ke10 prototype was spotted in Central Park, New York, with actor Robert Downey Jr at the wheel.

This may all just be a coincidence, but this new mysterious supercar concept has befallen our eyes at the same time Honda CEO, Takanobu Ito, confirmed that the next NSX would be a high-performance exotic sports car. Then there's a source leaking information, saying that "Honda wants to build a supercar that breaks the mould while creating a new technological package." The company is currently working on a 3.5-3.7 liter VTEC V6 engine in combination with a twin electric motor set-up powered by lithium-ion batteries. This motor will have a plug-in recharge system for a small electric-only range, giving it great amounts of torque.

Another source told AutoExpress that the Dual Note 4WD Hybrid Concept from the 2001 Tokyo Motor Show was the first glimpse at the technology that will underpin the NSX. This concept was powered by a 3.5 liter V6 engine which sent power to the rear wheels, while in-wheel electric motors sent power to the front. This setup delivered an output of over 400 HP.

The Honda NSX will go on sale in 2014 and will be priced from about £65,000 or about $100,000 at the current exchange rates.

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