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
Thrall Car Manufacturing Company closed 2002). In 2000, Thrall Europa acquired the railway vehicle manufacturer ČKD Vagonka Studénka (Czech Republic), renamed "Thrall Vagonka Studénka, a.s.". (In 2006 Trinity Industries sold off its European operations to International Railway Systems) The closely held company was sold to Trinity Industries, based in Dallas, Texas, in 2001. The company was subsequently renamed Trinity Rail Group, LLC. Thrall was mainly a freight car fabrication and assembly operation. Additional car types manufactured included boxcars and gondolas. Most cars were designed for standard gauge interchange service on AAR-approved railroads within North America. Many tri-level autoracks built by Thrall exist today, identifiable