The premium Infiniti brand is a mixed bag of some stylish and some long-in-the-tooth models. Fit and finish is usually very good, and the powertrains are typically strong. Recently, the brand has been focusing on supplementing its SUV offerings with the new QX55 and redesigned QX60. It offers just one sedan, the long-in-the-tooth Q50. There’s also the Q60, a coupe version of the Q50, and the QX80 large SUV.