The BMW 320 TC is the further development of the BMW 320si WTCC, with which Andy Priaulx won the World Touring Car Championship for BMW in 2006 and 2007, and which has allowed countless privateers to taste success around the world. Well over 60 models have been delivered to date by BMW Motorsport Distribution. The new BMW 320 TC, which from 2011 can be used in series in accordance with the new Super2000 regulations, is driven by a 1.6 litre, DI-turbo, four-cylinder engine. The six-speed, sequential gearbox, which can be used to configure the circuit-specific transmission ratio, is also a new feature.

The self-supporting BMW 320 TC body is manufactured in BMW Plant Regensburg alongside the production body shells for the BMW 1 and 3 Series. It is converted by hand for race deployment in an adjacent hall by specialists.

The engineers devoted a lot of thought to the modifications required to the axles and suspension geometry. For instance, they were faced with the task of designing the axles to include a camber setting that could be adjusted independently of any other settings parameters, such as roll centre and track. This would make the axles easier for semi-professional teams to set up. The track width and camber were increased, while the wheel carrier and bearing were carried over from the production model.

The BMW 320 TC uses inner-vented, perforated brake discs and four-piston aluminium brake callipers at the front. The grey cast iron discs measure 332 mm in diameter and are 32 mm thick. The car’s rear brakes also feature inner-vented discs measuring 291 mm in diameter, and two-piston aluminium callipers.

Fact box.