It deserves note, however, that Toyota, GM, Honda, BMW and Ford all benefit from having a number of companies under their corporate umbrella. The way J.D. Power comes to its conclusions is to include each automaker's individual brands within the parent company. So Scion owners are likely to upgrade to a Toyota, Chevy owners might buy a Buick, and MINI buyers might take a step up into the newest 3-series – all of which skews the figures in favor of larger manufacturers.
However, lacking a large brand portfolio is hardly an excuse for Isuzu, who only came away from the survey with a 1.6-percent retention rate.
[Source: J.D. Power and Associates via CNNMoney]