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
St. Louis Car Company to produce aircraft. During the two world wars, the company manufactured gliders, trainers, alligators, flying boats, and dirigible gondolas. Among their most successful products were the Birney Safety Car and the PCC streetcar, a design that was very popular at the time. The firm went on to build some of the vehicles used in the transit systems of New York City and Chicago, as well as the FM OP800 railcars manufactured exclusively for the Southern Railway in 1939. In 1960, St. Louis Car Company was acquired by General Steel Industries. In 1964, St. Louis Car completed an order of 430