In 2005, the new Audi A6 won the World Car of the Year award, and has recently won its class in the Practical Caravan "tow car of the year" awards, due to its array of towing features such as adjustable suspension height and damping, and the presence of a Trailer Stability Program., The new C6 generation A6 was released in 2004. Designed by Walter de'Silva, the new model is visually an evolution of the C5, but is lengthened to (193.7 in), incorporates the new Audi trademark "single-frame grille", and features more sophisticated technology. Most notable is the Multi Media Interface (MMI) which is a system controlling in-car entertainment, satellite navigation, climate control, car settings such as suspension configuration and optional electronic accessories through a central screen interface. This has the advantage of minimising the wealth of buttons normally found on a dashboard by replacing them with controls which operate multiple devices using the integrated display., On the internal combustion engines, the new Fuel Stratified Injection (FSI) direct injection technology was introduced. Although the line of engines represents the same progression as the former model, all engines were new. The multitronic continuously variable transmission continues as an alternative for front-wheel drive models, alongside a new six-speed tiptronic automatic transmission available in the four-wheel drive models. Audi's "trademark" Torsen-based quattro permanent four wheel drive is available in most of the lineup, and standard in the most powerful models. quattro is not available on the multitronic variants of the A6, but is available on the manual and tiptronic gear systems. Conversely the tiptronic system is not available on the front-wheel drive variants of the car. The six-speed manual gearbox is available with the 3.2 litre V6 engine, but not for the North American market., Like the previous model, the A6 is available with other body options. The Avant arrived during the course of 2005, while in China, a long wheelbase version was introduced in the same year, named A6L.The allroad variant (now called A6 allroad quattro) made its debut in 2006, and as before, is an off-road ready version of the Avant, available with either a 2.7 litre V6 or 3.0 litre V6 Turbocharged Direct Injection diesel engines, or a 3.2 litre V6 or 4.2 litre V8 petrol engine., Platform Volkswagen Group C6 platform, Engine(s) , 2.0 16v TFSI Inline 4 DOHC 170 PS (168 hp), 2.4 24v V6 2xDOHC 177 PS ( 175 hp), 2.8 24v FSI V6 2xDOHC 210 PS (207 hp), 3.0 30v V6 2xDOHC 218 PS ( 215 hp), 3.2 24v FSI V6 2xDOHC 255 PS ( 252 hp), 4.2 32v FSI V8 2xDOHC 335 PS ( 330 hp), 350 PS ( 345 hp), Transmission(s) 6-speed manual, 6-speed tiptronic automatic, 7-speed multitronic CVT, Wheelbase (111.9 in), LWB: (115.9 in), Length (194.0 in), LWB: (198.2 in), Width (77.0 in), Height saloon: (57.4 in), Avant: (57.6 in), LWB: (58.5 in), Kerb weight (3,351.0–4,067.5 lb)