With only one engine option, the Infiniti G-Series wasn't really a match for the whole pack of Germans from Audi, BMW and Mercedes-Benz. But in terms of refinement, the 2013 G37 was a true contender in its price range and power output.

Luxurious was definitely the word to describe the powerful sedan and Infiniti made it even more appealing for 2011.

Infiniti introduced the fourth generation of its G series in 2006 for the Japanese market powered by the old 3.5-liter powerplant. But that didn't last long.