MERCEDES is bidding to throw off its conservative image with a new range of distinctive models - the latest out of the starting block being the R-Class Grand Sports Tourer.

Billed as a cross between a luxury saloon and a luxury MPV, the R-Class aims to offer versatility combined with athletic performance and comfort for up to six passengers.

Uunveiled as a concept three years ago, the production version provides around 64 per cent of its overall body length as occupant space, with more leg and head room than even in a high-priced luxury limousine.

Each passenger sits in an individual seat - with armrests in the second row - while being serenaded by a separate DVD/CD player with colour screens and earphone connections integrated into the back of the head restraints.

A full Thermatic climate control system is complemented by a panoramic sunroof whose glass panels extend virtually over the entire roof.

Families keen on sports and recreational activities are catered for because the rear seats fold flat, allowing the load capacity to be expanded to as much as 2057 litres.

Visually the R-Class is dominated by a striking radiator grille with horizontal louvres, wide-set headlights and arching roof line and pronounced, muscular shoulders.

Power will be provided by a selection of V6 and V8 engines with outputs ranging from 224bhp up to 306bhp - the most powerful V8 will propel the R500 from standstill to 62mph in 6.9 seconds and go on to a top speed of 149 mph.

Permanent all-wheel-drive, electronically controlled 4ETS traction system and ESP are matched to air suspension at the rear axle or the option of Airmatic all-round air suspension.

The new R-Class is being launched in North America this autumn with deliveries to customers in Europe due to begin early in 2006 and UK arrivals around spring 2006.

No price information is available yet.