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Tested: 2014 Buick Regal Turbo AWD and GS AWD - Car and Driver
Tested: 270-hp 2012 Buick Regal GS Turbo - Car and Driver
2020 Buick Regal GS Review, Pricing, and Specs - Car and Driver
Buick Regal - Wikipedia
2016 Buick Regal Turbo GS 4dr Front-Wheel Drive Sedan Review
2016 Buick Regal GS AWD review - Autoweek
Used 2017 Buick Regal GS Sedan Review & Ratings | Edmunds
Test Drives and Reviews - Road Test Reviews
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Used 2012 Buick Regal GS for Sale - Edmunds