Infiniti Q50 Gets Three Turbo Engines and AWD in Chicago

The Infiniti Q50 might be the car with the most powertrains of its class in America. The Japanese automaker’s most popular sedan just received a raft of upgrades that will make the competition envious. We knew about the 400 horsepower twin-turbo V6 already. However, there’s now a cheaper version rated at 300 hp in addition to a 2-liter turbo. At 400 horsepower and 350 lb-ft of torque, the Q50 Red Sport 400 will be the most power…