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CARFAX One-Owner. Ebony Twilight Metallic 2019 Buick LaCrosse Avenir FWD 9-Speed Automatic 3.6L V6 DI We have just one goal here at Royal Buick GMC. We are dedicated to helping new and used shoppers like you find the best option for you and your ...Royal Buick GMC · 2 weeks ago on vAuto, Inc.(registration req.)