No one at General Motors is talking publicly about a rumor post over at InsideEVs that claims the 83-horsepower, 1.4-liter range-extending gas engine currently used in the Chevrolet Volt will “definitely not” be the engine that is used in the 2014 model-year Volt. And, by no one talking publicly, we mean that our emails have gone unanswered. InsideEVs just got an “Unfortunately, we do not comment on future product details, so I cannot provide any information related to your inquiry,” from GM spokesperson Kevin Kelly.

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So, that means it’s speculation time. InsideEVs claims to have spoken to an unnamed source who says that the replacement engine will be the new 2.0-liter turbo. This source says this engine has been tested on the Volt’s Delta II compact vehicle platform, which is also used in the Buick Verano and many others.
Full story: Autoblog