The Regal’s Haldex all-wheel-drive system (available with the 2.0L turbo engine) is
designed to make the most of handling and stability in all driving conditions. It is an
advanced, fully automatic and on-demand system that includes developments in
wheel-slip management and an electronic limited-slip rear differential.
While engineered to offer sure-footed handling in low-grip conditions, Regal’s AWD
system also alters its characteristics to support performance-oriented driving when
the Sport or GS driving modes are selected on Regal GS. It also contributes to a
quieter and smoother ride with minimal torque transferred to the rear wheels when
all-wheel-drive traction isn’t required.
Regal GS details
The Regal GS is designed to deliver a dynamic driving experience through
sophisticated suspension technologies, premium amenities and a more expressive
presence. Along with its standard turbocharged powertrain, the GS features the
exclusive application of Buick’s Interactive Drive Control system, which allows the
driver to select different drive modes – including the GS mode and its track-
oriented competitive setting.
In GS mode, the Regal increases steering efforts for more direct feedback to the
driver. Increased damping levels ensure ultimate wheel control and reduced body
roll for better agility. GS mode also is designed to alter the shift feel of the six-
speed automatic transmission.
The GS’s HiPer Strut front suspension enhances ride and handling by reducing
torque steer; more linear and communicative steering through improved camber
control; and improved impact isolation on bumps and rough surfaces. It is
complemented by a four-wheel-disc brake system featuring front Brembo four-
piston front calipers and larger rotors.
A four-link independent rear suspension is used on FWD models and an H-arm rear
suspension is used on AWD models. It uses the same attachment points as the
four-link system, but with the cross member attached via isolated mounts. This
system delivers excellent ride quality and handling, while minimizing road noise.
The GS’s front and rear dampers incorporate active Computer Damping Control,
continuously changing damper characteristics that optimize ride comfort and
handling capabilities over varying road surfaces and profiles. More aggressive,
performance-oriented damping characteristics can also be selected by the driver
through the Interactive Driver Control system.
Additionally, the Regal GS features a lowered ride height and 19-inch aluminum
wheels to project a sporty, purposeful stance. Twenty-inch wheels with summer-
rated performance tires are available.
