Buick and GMC Marketing Vice President Philip Brook (left) accepts the IHS Markit "Most Improved Loyalty to Make" award from IHS Markit Vice President Automotive Global Sales David Flynn Tuesday, January 16, 2018 in Detroit, Michigan. IHS Markit loyalty awards are presented annually to companies and brands that demonstrate the ability to retain owners over repeat buying cycles. Buick’s loyalty award comes after the brand delivered its best calendar year sales since 2004. (Photo by Steve Fecht for Buick)