Burger King's U.S. restaurants outperformed, while Popeyes disappointed. Restaurant Brands chalked up 3.8% comparable sales growth, led by Burger King US (up 8.5%) and consolidated international (5.5%), while Tim Hortons lagged the group (0.1%). Burger King restaurant (file image) Restaurant Brands will take full control of Carrols Restaurant Group in a deal that values the largest U.S. Burger King franchise at about $1 billion,.