Rolls-Royce Motor Cars have released official sketches of its newest model called the RR4, which has been slated for launch in 2010.

The RR4 will be smaller than the Phantom but as its sketches show, it will share the Phantom’s long-hood, high-beltline proportions. According to the car’s chief designer, Ian Cameron, the “RR4 has a more informal presence than the Phantom models with a greater emphasis on driving.”

Vehicle development and testing is well under way at the marque’s refurbished Goodwood manufacturing facilities, and the company is due to release further details next year.