The Maserati Quattroporte SQ4 V6 is a four-door luxury sedan produced by Italian automobile manufacturer Maserati. The Quattroporte SQ4 V6 was introduced in 2012, and features a 3.0-liter V6 engine producing 400 horsepower and 368 lb-ft of torque. The engine is mated to an 8-speed automatic transmission, which gives the car a sprint from 0-60 mph in just 5 seconds. The Quattroporte SQ4 V6 comes with a range of features, including adaptive suspension, active exhaust, performance seats and wheels, and more.