A power-dense Ecotec 2.4L four-cylinder, with dual-overhead camshafts, variable valve timing and E85 capability, is the standard engine in the Buick Verano. It produces an estimated 177 horsepower (132 kW) and 170 lb.-ft. of torque (230 Nm). Direct injection technology helps it produce more power with less fuel and lower emissions - including up to 25-percent reduced hydrocarbon emissions when compared with a multi-point fuel injection engine. The engine is matched with a six-speed automatic transmission that helps the Buick Verano deliver an estimated 31 mpg on the highway. Electric power steering and a more efficient transmission design help optimize fuel economy.

The front suspension uses decoupled MacPherson struts for better isolation, providing greater separation of extreme road conditions - large potholes, for example - from everyday driving conditions. At the rear, a technically advanced Watts Z-link design helps center the rear axle during cornering, which helps keep the Buick Verano's handling responses symmetrical on both left-hand and right-hand turns. The linkage's capability to center the axle during cornering delivers a more-balanced driving experience because the rear suspension better follows the lead of the front suspension.

The Z-link design is also lighter and requires less space than a typical fully independent rear suspension. The lower weight contributes to Buick Verano's fuel economy, while the compact design enables more trunk space.

Steering inputs are executed by an electric power steering system, featuring a dual-pinion rack. Electric powering steering helps save fuel because it removes the conventional power steering pump from the engine's driven accessories. Engineers tuned the speed-sensitive system to provide quick, direct reaction to steering actions and a strong on-center feel. The system has a ratio of 15.5:1 and requires only slightly more than two turns, lock to lock.

Stopping power is handled by a four-wheel disc brake system with standard anti-lock and electronic brake force distribution, as well as StabiliTrak electronic stability control with traction control.