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,
Kansas City Motor Car Company wide range of vehicles from 1905 to 1909, when in a last ditch effort to stay in business, the company was reorganized as The Wonder Motor Car Company and manufactured the Kansas City Wonder Automobile briefly in 1909. No examples of any Caps Brothers, Kansas City, or Wonder cars or trucks are known to exist today. Through their five years in the business, the Kansas City Motor Car Company manufactured a full line of vehicles ranging early on from two to four and five seater cars with 20 horse air cooled two cylinder engines and 50 horsepower four cylinder engines.