2016 INFINITI Q50

Complementing the new 3.0-liter V6 is a 2.0-liter four-cylinder turbocharged unit, producing 208 horsepower at 5,500 rpm with peak torque of 258 lb-ft (350 Nm) available from 1,500 rpm. This 1,991 cc unit has been engineered to achieve the same goals as the 3.0-liter V6 unit, blending response and performance with efficiency.Direct injection and a high-efficiency compact turbocharger combine to achieve high levels of torque from low engine speeds for an enhanced driving experience. The high-pressure direct injection system with 200 bar piezoelectric injectors, multi-spark ignition and lean-burn combustion technologies also contributes significantly to efficiency. This is complemented by a variable camshaft design on the intake side, which enables a switchover from a standard cam for higher loads and engine speeds where increased power is required, to a small cam for partial engine loads.In addition, to minimize friction losses on the small cam a maximum valve lift of 3.8 mm has been specified. The main advantage is a reduction of charge exchange losses and a nearly throttle-free operation in a relatively broad range of scenarios for exceptional efficiency.A lightweight aluminum block and cylinder head with chain-driven dual-overhead camshafts, die-cast aluminum cylinder crankcase and optimized crank assembly promote further weight savings, reduce friction and improve efficiency. For the first time, the Q50 will offer an idle stop-start system (ISS) in combination with a 2.0- liter four-cylinder turbocharged engine.The Q50's advanced hybrid powertrain remains unchanged, featuring the Direct Response Hybrid system with Intelligent Dual Clutch Control. It combines a 3.5-liter 24-valve DOHC aluminum-alloy V6 and a compact laminated lithium-ion battery with an innovative one-motor, two-clutch control. The system's V6 is rated at 302 horsepower and 258 lb-ft of torque, while the advanced 50 kW electric motor is rated at 67 horsepower and 214 lb-ft of torque. The hybrid system net power is 360 horsepower, providing strong acceleration and lean fuel economy.The hybrid powertrain is designed to put performance first, while bringing significant benefits for fuel efficiency. It takes full advantage of the electric motor's instant torque for exceptional acceleration and, in combination with the 3.5-liter V6, provides an energetic feel under all driving conditions.Smooth shifts from seven-speed automatic transmissionAll 2016 Q50 powertrains are matched to an advanced seven-speed electronically controlled automatic transmission with manual shift mode and steering column-mounted magnesium paddle shifters.Adaptive Shift Control enhances gear selection by using a lateral acceleration sensor to detect changes in the road, such as hills and turns. Sport mode allows the driver to select a more aggressive shift pattern with automatic up- and down-shifting at higher rpm. The combined effect is for any driver to enjoy quick, smooth shifts and gear choices that are appr