BMW has announced that it will debut the latest version of its 320si during the next round of the World Touring Car Championship in Morocco.

Jorg Muller, Augusto Farfus, Andy Priaulx, Alex Zanardi and Sergio Hernandez will all sport a new bonnet, new headlamps and a new front bumper with wider air intakes.

The changes were tested on the cars during testing in Spain over the winter, but hadn't been in place for the opening rounds of the campaign in Brazil and Mexico.

“The face lift is mainly an optical change,” BMW Motorsport general manager for sports and touring cars Friedhelm Nohl said. “The WTCC cars are based on the normal production cars, and in September 2008 the facelifted version of the BMW 3 Series was launched on the markets.

“This is the reason why the race version adopts now these modifications as well. The new design will have only some marginal influence on the aerodynamics.”