Overview: The car formerly known as the Infiniti G37 sedan will receive an engine transplant, but not until part way into the 2016 model year.
Drivetrain: The Q50s 328-horsepower V6 is being jettisoned for a turbocharged four-cylinder that’s built for Mercedes-Benz; seven-speed automatic transmission will remain.
The Q50 is Infiniti’s answer to the BMW 3-Series, Cadillac ATS, Mercedes-Benz C-class and other entry-luxury sedans. To more aggressively compete with these models, parent Nissan will replace the 3.7-liter V6 with a turbocharged 2.0-liter four-cylinder engine that’s built for Mercedes-Benz cars at a joint plant in Tennessee. Exact output isn’t known at this time, but rumor has it that it will be close to 250 horsepower and possibly produce more peak torque than the 3.7’s 269 pound-feet. Also expected to follow is a twin-turbo 3.0-liter V6 with up to 400 horses on tap. That engine has barely passed the rumor stage, but that output level will be necessary if the Q50 is to compete with sedans that offer similar outputs. All-wheel-drive will continue to be available, but the exact fate of the Q50 Hybrid remains uncertain at this point. Beyond the new engine, the Q50 is expected to get restyled front- and rear-end bodywork, fresh wheel designs and some new trim inside and out.