Confirming rumors, Buick is using the Detroit auto show to debut a higher-performance derivative of the Regal sports sedan. Although the Regal GS is officially a concept car, it won’t take much to bring this one to market, since it’s very similar to the Opel Insignia OPC already on sale in Europe. The regular Regal hits U.S. streets late this spring.
Externally, the GS is differentiated from the stock Regal by a 0.4-inch-lower stance accented by 20-inch forged aluminum wheels, as well as twin ports on the hood, unique rocker panels, dual exhaust outlets, additional front air intakes, and satin-finish metallic accents on the window surrounds. Inside, it gets Recaro sports seats, a squared-off steering wheel, and metal pedals.
However, unlike the OPC, which is fitted with a 325-hp, 2.8-liter turbocharged V-6, the GS concept features a tweaked version of the Regal’s 2.0-liter direct-injection turbo four making 255 hp and 295 lb-ft of torque. The engine drives through a six-speed manual transmission in the show car, but expect an automatic option when the GS goes into production. According to Buick execs Craig Bierley and Jim Federico, the reasons for the four-cylinder versus the V-6 are many: The bigger engine doesn’t make as much power when tuned to meet U.S. emissions regulations, and because it weighs more, there’s not a lot of difference in power-to-weight ratios. The V-6 also guzzles more gas than the turbo four, and the latter provides better weight distribution.
Thanks to: Car and Driver