History of the diesel car featured an aluminium block, DOHC chain driven valvetrain, common rail direct injection and variable geometry turbocharger. In Spring 2005, Mercedes-Benz unveiled their first application of a mass-produced aluminum block diesel engine for passenger vehicles and commercial use. While aluminum is traditionally considered of inferior strength and temperature resistance to withstand diesel applications, Mercedes engineers made extensive use of CAD/CAM design to arrive at an aluminum block that would meet with Mercedes' testing and reliability standards. First use was in 2006 model-year vehicles in the E-Class sedan and ML-class and GL-class SUVs. Similar in weight () to the five-cylinder it replaced,
REO Motor Car Company failures and the company was bankrupt again by 1966. After reorganizing, only the successful steel-joist business remained; the company started producing recycled steel, and eventually renamed itself Nucor. In the novel Mrs. Bridges by Evan S. Connell, Mrs. Bridges drives a Reo. REO Motor Car Company The REO Motor Car Company was a Lansing, Michigan-based company that produced automobiles and trucks from 1905 to 1975. At one point the company also manufactured buses on its truck platforms. Ransom E. Olds was an entrepreneur who founded multiple companies in the automobile industry. In 1897 Olds founded the Olds Motor Vehicle Company,