The Buick Terraza is powered by GM's 3.5-liter V6 rated at 200 horsepower and 225 pound-feet of torque, a cast iron V6 that's been around for decades yet still manages to be the strong, silent type when it comes to highway running.And, speaking of silence, the Terraza has been treated to Quiet Tuning, Buick's package of sound blockers, attenuators, and deadeners from the firewall to the tailgate. Considering the size of the hole the Terraza cuts through the air, the big tires and the huge glass area, it is very quiet at high cruising speeds on good pavement. Any minivan, because it is a big empty box with lots of glass, is an acoustic nightmare, and Buick has done a first-rate job of quieting things down.
The Terraza offers good acceleration, steering, and braking performance and nice road manners.
If things get out of hand the traction control and the Stabilitrak electronic stability control systems step in. With these systems working to operate throttle, brakes, suspension, and torque distribution to the two front driving wheels, there's a lot more peace of mind available in bad weather conditions. which helps drivers maintain control in sudden maneuvers, particularly in low traction conditions, in emergency lane changes, and during avoidance maneuvers.