The Q50, Infiniti’s compact luxury sedan, replaced the G35 and G37 several years ago. It offers something for everyone, from a dynamic hybrid version to the very powerful 400-horsepower Red Sport. Between these two extremes, there’s a 208-horsepower 2.0L four cylinder and a 300-horsepower 3.0L V6. There’s just one gearbox for all these versions: a seven-speed automatic. Regardless of the variant, all-wheel drive is a given.