Cadillac is getting serious about efficient powertrains. The brand will launch four- and six-cylinder diesel engines, the brand’s chief engineer Dave Leone re-confirmed to us. (Cadillac CEO Johan de Nysschen previously asserted a similar plan, and said the engines would arrive by 2019.) “They are both new engines,” Leone said. He said that the usage and tuning will be tailored to the cars: “It depends on the product they are going into.” The diesel engines are designed with the European market in mind, but according to our intel, they just might be offered in the U.S. as well.
-Speaking about additional future technologies, Leone acknowledged the benefits of electric turbo/supercharging, a type of forced induction we experienced in an Audi RS5 TDI prototype and which has also been tested in some gasoline-powered vehicles from other makers. (We tested an EcoBoost Ford Focus with such a system.) “Electric charging its a novel approach, a way of getting a fast response,” Leone said, adding: “You don’t need to limit it to gasoline engines.” He also admitted that there would be packaging challenges to overcome and a need for a 48-volt electrical system before Cadillac could adopt such a technology, which can minimize lag at the low end by supplying boost before a conventional turbocharger spools up.
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Leone also confirmed that Cadillac is studying three-cylinder engines for future models: “The world is ever-changing, the fuel-economy requirements are different, and those things are possible.” He also said that Cadillac will begin offering fuel-saving engine stop-start systems for 2016.
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