Info from Wikipedia : The Furai officially debuts at the 2008 North American International Auto Show in Detroit. The Furai (風籟, Fūrai?), meaning Sound of the wind, is the fifth and last of the Mazda Nagare line of concept cars that have been made by Mazda since 2006. The chassis is based on the Courage Compétition C65 Le Mans Prototype that Mazda last used to compete in the American Le Mans Series, two seasons previously[3] and is designed to use E100 ethanol fuel, it is powered by a new generation 3-rotor wankel engine that puts out 450 brake horsepower (340 kW). The engine is developed and built by renowned rotary tuner, Racing Beat, who also built the car's rotary-shaped muffler canister.[6]

The car bears the #55 number that of its 1991 24 Hours of Le Mans winning ancestor, the 787B. Unlike many concept cars, the Furai is fully functional and is currently being tested at various tracks. It has run at Laguna Seca and Buttonwillow.

Head designer, Laurens van den Acker, has stated in an interview with Top Gear magazine that there are possibilities of the Furai being used for racing in Le Mans, and he also has strong hopes that the car could be brought to the market. (less info)