The Buick Regal is produced in a number of different body styles and configurations, including the five-door fastback Buick Regal Sportback model, which offers a combination of versatility, luxury, and driver engagement. Higher levels of performance can be had with the Buick Regal GS, which comes standard with a five-link rear suspension, as opposed to the standard four-link suspension found on the non-GS Sportback. However, for those buyers that want the more sophisticated and nimble five-link setup without stepping up to the GS, there’s a trick.
When speccing the non-GS Regal Sportback, buyers can upgrade the rear suspension from a four-link to a five-link by simply opting into the Essence trim level with an all-wheel-drive drivetrain. The Essence and GS are the only Regal models offered with all-wheel-drive.
Meanwhile, all front-wheel-drive Buick Regal Sportback models come equipped with a four-link rear suspension. As such, stepping up to the five-link setup on the all-wheel-drive Essence model will provide drivers with more precise wheel control, as well as improved mitigation of road aberrations with regard to ride quality.
All models utilize MacPherson strut front suspension.
For reference, the Buick Regal Sportback Essence is equipped with the turbocharged 2.0L inline four-cylinder LTG powerplant, which is tuned to deliver 250 horsepower at 5,400 rpm, plus 260 pound-feet of torque at 2,000 rpm for front-wheel-drive models, and 295 pound-feet of torque at 3,000 rpm on all-wheel-drive models. Meanwhile, the Regal GS is equipped with the naturally aspirated 3.6L V6 LGX powerplant, which is tuned to deliver 310 horsepower at 6,800 rpm and 282 pound-feet of torque at 5,200 rpm.
The GS also offers unique front and rear fascias, side skirts, rear spoiler, and standard 19-inch wheels, giving it a more performance-oriented flavoring overall. In the corners, the GS utilizes second-generation Continuous Damping Control (CDC) suspenders.