Conducted annually, theJ.D. Power U.S. Automotive Performance, Execution and Layout (APEAL) Study,SMnow in its 22nd year, measures owner satisfaction with their vehicle's performance, styling, comfort, features, and usability after 90 days of ownership. It covers satisfaction, likes, and dislikes for 77 vehicle attributes across 10 categories. In the 2017 study, 245 models from 33 brands are ranked.