Honda Acura

They're set to take the wraps off an Advanced Sports Car Concept at next week's Detroit Motor Show - only a month after Honda's premium brand dis­played an enormous saloon concept at the Los Angeles expo.

The coupé previews a future production car, and as this image reveals, it has a giant glass roof that neatly incorporates the rear windscreen. Other design cues include sharply styled air vents in the front wing and a rear bumper with integral exhaust tailpipes. The sleek show car also looks set to do without conventional door handles.