INFINITI QX70

Who Needs A V8? There's something in the water at Nissan. Has to be. There's no other explanation for a company that produces vehicles like the Murano CrossCabriolet and Juke as well as the undeniably bonkers GT-R. Infiniti hasn't escaped whatever's lurking in the well, either. The company's recent shift from a comfortable and logical naming structure to a slurry of Q-based monikers is the most recent example of insanity lurking in the luxury automaker's halls, but it certainly isn't the first. Take, for example, the FX50. With its 390-horsepower V8 engine and a rear-bias…