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,
Jewett Car Company Jewett Car Company The Jewett Car Company was an early 20th-century American industrial company that manufactured streetcars and interurban cars. The company was founded in 1893 in Jewett, Ohio, where its first factory was located. In 1904, the company relocated from Jewett to a site along South Williams Street in Newark, Ohio, but maintained the original name. The facility soon expanded to become one of Newark's largest employers. Among its customers was the city of San Francisco, California, which purchased several street cars from Jewett. The company produced more than 2,000 wood-and-steel street cars, shipping them to 26 states and