While the rest of the 2012 Chevrolet Impala package hasn't been substantially upgraded in years, GM decided to install one of its best, most refined powertrains into this large sedan: its 3.6-liter V-6 and six-speed automatic transmission.
In the Impala, the engine makes 300 horsepower and 262 pound-feet of torque, and it runs fine on regular unleaded. While we haven't driven the Impala yet with the new powertrain, in other models we've found this engine to be far smoother than the pushrod V-6 engines that precede it. And thanks to the wider gear span of the six-speed, real-world acceleration and passing should be stronger.
It's likely the Impala rides and handles pretty much as before--which is to say very well damped, with a plush ride and lots of body roll on tap to serve as a reminder not to make hasty changes in direction. While LT and LTZ models come with a somewhat firmer Touring calibration, the Impala remains a cushy highway cruiser more than anything else.