Oldsmobile 4-4-2 W-30 versus Buick GS 455 Stage 1, A-body brothers each considered the “gentleman’s musclecar.” Sibling rivals when GM divisions competed.

When Buick launched the new and updated Regal, the marketing was targeted at the import sport sedans; and with the introduction of the new GS model for the 2012 Buick Regal, this target draws closer.

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