Buick Regal GS Turbo puts out 270 hp, 135 hp-per-liter

The Buick Regal GS gets 270-hp, 295 lb-ft of torque out of its 2.0-liter four-cylinder engine for a wheel-twisting 135 hp-per-liter, giving it the highest "SAE certified" hp-to-liter ratio. Unfortunately, all that power still gets pushed through the front wheels.

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