History of the diesel car and considerably lighter than the in-line six-cylinder it also replaced, this 3.0L V-6 produces 165 kW (224 hp) at 3,800 rpm and max torque of 510 Nm (376 ft·lbf) at 1,600-2,800 rpm and makes use of a four-valve head. Additionally, fitment of Mercedes-Benz BlueTec system, a concert of emissions control strategies, renders this new diesel 50-state legal in the U.S. beginning in 2008 (stringent NOx limits have made U.S. passenger-car diesels unpopular or impossible in parts of the U.S. in recent years). In 2006, the new Audi R10 TDI LMP1 entered by Joest Racing became the first diesel-engined car to
Budd Rail Diesel Car In 1941 Budd built the "Prospector" for the Denver and Rio Grande Western Railroad. This was a two-car diesel multiple unit. Each car had a pair of diesel engines and was capable of independent operation. The cars were constructed of stainless steel and included a mix of coach and sleeping accommodations. The design was popular with the public but undone by the difficult operating conditions on the D&RGW. It was withdrawn in July 1942, apparently another failure. However, several technical advances during the Second World War encouraged Budd to try again. The war years saw improvements in the lightweight Detroit