Rumor has it that General Motors has been tirelessly working on a pair of new twin-turbocharged V6 engines to bring about a new age of fuel economy and performance to its vehicles. As the stories go, the V6 engines are a familiar 3.0L and 3.6L in size. We’re here to report that this story is only half true. At least for The Wreath and Crest.
Contrary to other reports around the Interwebs, we have it on very good word that General Motors is not, and was not, developing a twin-turbocharged 3.0L V6 engine for Cadillac vehicles. Instead, all efforts are focused on the development of twin-turbocharging the popular 3.6L V6 that’s found in pretty much everything larger than a Chevy Cruze.
The goal of this engine is to offer the kind of horsepower we find in today’s 6.2L LS3 small-block V8 mill. That’s 430 horsepower, but we’ll give the window of 420-440 horsepower for the upcoming TT V6 for the sake of being optimistic. And because of the turbos, the torque band will be much broader and more available compared to a naturally aspirated V8. And because it has two less cylinders than a V8, there will be gains in fuel economy. We say that’s a pretty good heart for something such as, say, a Cadillac ATS-V.