A study released Wednesday by J.D. Power and Associates found that cars and trucks are more dependable than ever. The study questioned 37,000 original owners of 2010 vehicles and asked them about problems they have had in the last year. Here are the brand rankings, as well as the average number of problems per brand and the number of places each brand rose or fell compared with J.D. Power's 2012 rankings.

Source: J.D. Power and Associates