Why You Should Skip The Turbo2014 Infiniti Q50 exterior front 3/4 view InfinitiAnyone looking for maximum bang for the buck should seek out the Infiniti Q50 Red Sport 400. It is a naturally aspirated 3.7-liter V6, an all-aluminum powerhouse shared with the 370Z. The arrival of the 2014 Infiniti Q50 showed the product could offer proper luxury, too. The twin-turbo V6 delivers stronger midrange torque and effortless passing power, yet it lacks the immediacy of the 3.7-liter V6. 2014 Infiniti Q50 Front Wheel InfinitiThe good news is that most of the Q50's commonly reported problems aren't related to the 3.7-liter V6 itself.