Buick’s Regal GS, unveiled at the North American International Auto Show, is a car based on the Opel Insignia OPC for the United States. It’s the first sport-oriented Buick in quite some time, and a successor to the company’s Gran Sport heritage.
Even though this car looks exactly the same as the Opel Insignia OPC, it isn’t identical. For instance, the engine has been replaced with a 2.0-litre four-cylinder turbocharged unit. While the 2.8 V6 on the Opel produces 321 bhp, Buick’s engine has less power, churning out 252 bhp and 400 nm of torque.
“We designed the Regal GS to explore the appeal of a high-performance variant of the Regal,” said Craig Bierley, product marketing director for Buick. “Like the Regal, the Regal GS is based on the award-winning Opel Insignia, and we believe it will reinvigorate Buick’s storied Gran Sport legacy.”
The engine sends power to all four wheels through a six-speed manual transmission. The four-wheel drive system is adaptive and to further avoid the loss of power, an electronic limited-slip rear differential is also present on the car. The car should get from 0-100 kph in about 6 seconds. Even though power was important for Buick, they haven’t forgotten about handling. It has four-wheel independent suspension and a High Performance Strut system for the front wheels.
The High Performance Strut system is there to reduce torque steer and maintain negative camber during cornering, therefore improving grip and cornering abilities. Brembo brakes should also slow the Buick down quickly and precisely. All the performance mechanical bits of the car are harnessed by clever chassis technology (Interactive Drive Control System) which further helps stability and grip. It has three mode settings: normal, sport and GS, each of them offering different suspension settings, throttle response and steering sensitivity.
Press Release:
DETROIT – With an estimated 255 turbocharged horsepower (190 kW), a six-speed manual transmission and an advanced, adaptive all-wheel-drive system, the Buick Regal GS show car is a high-tech, high-performance version of the brand’s newest sport sedan. It was introduced at the 2010 North American International Auto Show.
The mechanical elements were developed with the aim of delivering a driving experience that is sporting, confidence-inspiring and refined. It has a performance-oriented drivetrain, a lowered body and lower center of gravity. Exterior and interior cues include two additional vertical front air intakes; large, forged aluminum 20-inch wheels and performance tires; a racing-inspired sport steering wheel and metal pedals. Recaro high-performance front seats feature four-way lumbar support and cushion extensions.
“We designed the Regal GS to explore the appeal of a high-performance variant of the Regal,” said Craig Bierley, product marketing director for Buick. “Like the Regal, the Regal GS is based on the award-winning Opel Insignia, and we believe it will reinvigorate Buick’s storied Gran Sport legacy.”
The Regal GS exterior is distinguished by vertical air inlets in the front fascia, as well as unique rocker panels, an integrated rear spoiler, dual exhaust outlets, Olympic White paint and satin metallic accents.
“The idea behind the Regal GS was taking the production model in a more aggressive direction to appeal to performance enthusiasts,” said John Cafaro, Buick design director. “But along with its aggressive stance, there’s sophisticated style in the design that complements the driving experience.”
Inside, the Regal GS varies from the standard Regal by featuring a completely jet black interior, including the pillars and headliner, sport shifter for the six-speed manual transmission and a suede-covered, flat-bottom steering wheel reminiscent of those used in international racing series. The instrument panel glows ice blue when the driver engages the sport mode of the Interactive Drive Control System (IDCS).
Turbocharged AWD performance
Power for the Regal GS comes from a high-output 2.0L Ecotec turbocharged engine with direct-injection technology. It is based on the engine that will be offered on Regal CXL models later this summer, but the engine and turbocharger are tuned to deliver greater boost pressure in the GS. The output is estimated at 255 horsepower (190 kW) and 295 lb.-ft. of torque (400 Nm).
The engine is mated to a six-speed manual transmission that directs torque to an adaptive all-wheel-drive system calibrated for performance driving. An electronic, limited-slip rear differential helps ensure the engine’s power is distributed effectively during cornering.
The high-performance drivetrain is expected to enable the Regal GS to accelerate from 0 to 60 mph in less than 6 seconds. That performance is complemented by a four-wheel-independent suspension, with a unique High Performance Strut (HiPerStrut) design in front. The HiPerStrut system helps reduce torque steer and maintain negative camber during cornering. This improves ultimate grip levels in dry and wet conditions, as well as improves the direct feel of the road, while isolating undesirable feedback. Behind the wheel the driver experiences reduced torque steer, improved grip and increased cornering power, along with crisper handling, steering precision and feedback.
The Regal GS features a high-performance Brembo brake system with 14 x 1.2-inch (355 x 32 mm) cross-drilled rotors; four-piston, high-strength aluminum calipers, and high-performance pads.
The Regal GS is also equipped with Interactive Drive Control System (IDCS) chassis technology (also offered on Regal CXL models with the 2.0L turbo engine). It delivers enhanced vehicle stability and greater driving safety, while also adapting the driving characteristics of the car to the driver’s preferences. The driver selects among three operating modes – normal, sport and GS – that change the suspension settings, throttle response and steering sensitivity through the variable-effort steering system.
About Buick
Buick is in the midst of a transformation that started with the Enclave luxury crossover and continues with the completely redesigned LaCrosse luxury sedan and Regal sport sedan. Buick is emerging as a modern, premium brand with vehicles characterized by sculpted designs, personal technologies, luxurious interiors and responsive performance. Future new sedans and crossovers are planned and will continue to expand Buick’s portfolio both in North America and China. More information can be found at www.buick.com.
BUICK REGAL GS SHOW CAR SPECIFICATIONS
Overview
Model: Buick Regal GS show car Body style / driveline: four-door, 5-passenger, front engine, transaxle. All-wheel-drive midsize vehicle Construction: steel body-frame integral (unibody) Engine/Transmission
High-output 2.0L DOHC I-4 Turbo Displacement (cu in / cc): 122 / 1998 Bore and stroke (in / mm): 3.39 x 3.39 / 86 x 86 Block material: cast aluminum Cylinder head material: cast aluminum Valvetrain: overhead camshafts, four-valves per cylinder, continuous variable valve timing for intake and exhaust Ignition system: individual coil-on-plug Fuel delivery: direct injection with variable high-pressure rail and electronic throttle control Compression ratio: 9.2:1 Horsepower (hp / kW): 255 / 190 (est.) Torque (lb.-ft. / Nm): 295 / 400 (est.) Transmission 6-speed manual Chassis/Suspension
Front: independent, HiPerStrut-type with dual-path mountings, specifically tuned coil springs, direct-acting stabilizer bar (hollow); hydraulic ride bushings; continuous damping control (Interactive Drive Control System) Rear: four-link independent rear; hollow stabilizer bar; continuous damping control Traction control: adaptive all-wheel drive; StabiliTrak electronic stability control Steering type: hydraulic, variable-effort rack-and-pinion power steering Brakes
Type: four-wheel disc w/ABS (w/ESC) Brake rotor diameter
(in / mm) caliper type (front and rear):14 / 355, vented and cross drilled rotors; four-piston aluminum calipers Wheels/Tires
Wheel size and type: 20-inch aluminum Tires: Bridgestone 245/35ZR20 Dimensions
Exterior
Wheelbase (in / mm) : 107.8 / 2738 Overall length (in / mm): 190.2 / 4831 Overall width (in / mm): 73.1 / 1811 Overall height (in / mm): 58.4 / 1483 Front track (in / mm): 62.4 / 1585 Rear track (in / mm): 62.5 / 1587 Interior
Seating capacity (front / rear): 2 / 3 Headroom (in / mm): 38.8 / 985 (front)
36.8 / 935 (rear)
Source: General Motors