Replacing the existing 3.6-liter V6 in the Cadillac ATS and CTS is... another 3.6-liter V6. But this one promises higher output, while consuming less fuel, and making less noise. Like the V8s in the CTS-V and Escalade, it's got cylinder-deactivation technology to cut it down to a four-pot under lighter loads, as well as automatic stop/start, and comes mated to an eight-speed automatic transmission.
The new engine produces 335 horsepower and 284 pound-feet of torque. That's a modest improvement over the 321 hp and 275 lb-ft mustered by the unit it replaces. But it also delivers an approximate improvement of nine percent in fuel economy and eight percent in carbon emissions. That's what we'd call a win-win, even if it's a modest one.
Of course, those ATS or CTS buyers attracted to higher efficiency will still likely go for the 2.5-liter inline-four or the 2.0-liter turbo four. And those more inclined towards performance will be tempted by the 3.6-liter twin-turbo V6 in the ATS-V or CTS Vsport – or the 6.2-liter supercharged V8 in the CTS-V, for that matter. But those customers looking for the best of both worlds will surely be pleased by the improvements the new atmospheric V6 and 8-speed gearbox bring to the table.