Think dependability, think Lexus, Porsche… Buick?

From comfort and safety to entertainment and emissions, new technology is rapidly flowing into vehicles. But what does it mean for dependability? Every year, J.D. Power measures the number of problems that US owners have had over the past 12 months, looking specifically at three-year old vehicles. Brands and models are ranked in terms of problems per 100 vehicles (PP100). The lower the score, the higher the quality.