Buick Regal's Opel twin given an update

The Opel Insignia is sold in the United States as the Buick Regal but we won't see the updated model as the Regal will soon be dropped.

2018 Buick Regal GS First Drive - The Regal GS We Want Is Not the Regal GS We Deserve

First Drive: 2011 Buick Regal

Spied! Euro-Market Opel Insignia Hints at Refreshed Buick Regal

Buick Regal's Opel twin given an update

2013 Buick Regal GS for Sale - Cars & Bids

GM Exec Confirms Sporty Buick Regal GS Gets Green Light for Production

Capsule Review: 2012 Buick Regal GS Take Two

2020 Buick Regal TourX Review & Ratings

Used 2014 Buick Regal GS in Troy MI

Buick Regal GS brings performance back to TriShield brand - Autoblog

2018 Buick Regal Arrives With Sportback And TourX Body Styles

Rendering: 2025 Buick Regal Returns to the Mid-Size Sedan Segment To Fight Crossovers - autoevolution