Rolls-Royce is currently developing a new entry-level model for launch in 2010, which is expected to double the number of vehicles built by the ultra-luxury carmaker each year. The new car carries the internal name ‘RR4’ and has been spotted testing both in the UK and Germany.

Former Rolls-Royce CEO Ian Robertson has previously mentioned the carmaker would add a second shift to its Goodwood, UK, plant to build the new car and that up to 800 units per year would be built. Last year, RR sold 805 cars world-wide, so the new model would effectively double the luxury carmaker’s sales.

RR4 will share much in common with parent company BMW’s long-wheelbase 7-series and will be roughly the same size as the German limo. However, the platform and engine for the car would be unique to Rolls-Royce. Most of the shared parts will include various electronic components but the car will have the attributes and behavior of a Rolls-Royce.

The heavy camouflage hides most of the details about the car’s styling but we do get a good sense of the its proportions on the road. As expected it will feature a long hood and short rear decklid like its big brother – the Phantom saloon. The rendering give us a glimpse at a possible design for the new baby Rolls and shows that designers will likely stick with the chiseled looks of the Phantom as well.

RR4 is tipped to enter production late next year and final pricing should fall between $250,000 and $300,000.