BMW has confirmed that a production version of the show-stopping Z4 Coupe Concept, first unveiled at this year’s IAA Frankfurt Motor Show, will go on sale in the UK in summer 2006.

The new Coupe takes much from the acclaimed BMW Z4 Roadster it is based upon, but benefits from a fixed, contoured roof for greater headroom and a large hatch-style boot lid for improved versatility. The use of a conventional fixed roof, instead of a convertible hood on Z4 underpinnings, results in improved levels of body stiffness and a consequential benefit to the car’s already outstanding handling.

Powered by the world’s lightest six-cylinder petrol production engine – the same unit that will be used in the recently announced BMW Z4 Roadster – the performance of the Z4 Coupe should prove rapid. In the Z4 Roadster, the 265hp powerplant powers that car from zero to 62mph in 5.7 seconds before going on to an electronically limited top speed of 155mph. Power is transmitted to the rear wheels via a standard six-speed manual gearbox.

Also joining the Z4 Coupe will be the new high-performance BMW Z4 M Coupe. Utilising the five-time class-winning International Engine of the Year, the 3.2-litre 343hp Z4 M Coupe promises to have scintillating performance. The same engine will be used in the forthcoming Z4 M Roadster due in the UK in spring 2006. In that car, acceleration from zero to 62mph is achieved in under five seconds and top speed is an electronically limited 155mph. The powerplant of the new car is mated to a six-speed manual gearbox and BMW M’s variable M differential for optimum performance and handling.

The styling of the BMW Z4 M Coupe differs significantly from the ‘standard’ model in a number of ways. At the front, a lower front spoiler provides greater downforce while the removal of the front foglights and the sculpture of a larger air intake have been designed to aid engine breathing and brake cooling. Unique ‘M’ light alloy wheels, M badging and quad tail pipes at the rear also set the car apart.

Full specification and pricing details of the Z4 Coupe and the Z4 M Coupe will be announced in 2006.