IN 2009, Audi announced the production of an R8 LMS racing car, designed for the GT3 rules in the FIA GT3 European Championship and various national racing series. Known within Audi Sport as the 'R16', the R8 LMS features a 500 PS (368 kW; 493 bhp) V10 engine. Because the GT3 regulations prohibit the use of four- wheel drive, Audi had to drop its 'trademark' Quattro four-wheel drive system, and the R8 LMS is only available with the typical rear-wheel drive setup. The torque is transmitted via a newly developed six-speed sequential sports gearbox. The car was manufactured by Audi Sport, Quattro GmbH, and Audi Hungaria Motor Kft. In 2010 Changes to the 2009 R8 LMS include the improvement of the engine cooling system capacity, suspension revisions, race-optimised electronics and exhaust systems, and a 6-speed transmission that can be inspected through an opening in the housing without the need to dismantle the entire assembly.