BMW Megacity Getting Radical Carbon-Fiber Body

MUNICH, Germany — BMW's radical Megacity low-emissions concept will feature a lightweight carbon-fiber monocoque. The car is part of BMW's Project i and is slated to appear "under a BMW sub-brand in the first half of the next decade," the automaker says, although it's thought that it could make an appearance at the 2012 London Olympics, of which the company recently announced major sponsorship.

In late October, the company announced formation of a joint venture with SGL Carbon to develop low-cost, modular carbon-fiber structures that will be viable for series manufacture. Production sites will be set up in both Germany and the United States. This is a growing trend. Volkswagen and Renault are pursuing similar technologies, although with different suppliers.

The Megacity is likely to be offered in multiple body styles and with electric and internal-combustion engine choices. BMW is also developing a radical new production method for the Megacity, according to global sales and marketing boss Ian Robertson. It's thought that this new system could allow the car to be built in smaller scale in local factories requiring less initial investment. Such an approach would represent a major break from traditional methods.

Inside Line says: The Megacity could be the most radical car BMW has yet offered, featuring innovative structures, propulsion systems and manufacturing techniques. — Richard Bremner, Correspondent