The 2015 Infiniti Q50 2.2d is a diesel-powered executive sedan featuring a 2.1-liter Mercedes-sourced engine producing 170 PS (168 hp) and 400 Nm of torque. It has a 0-62 mph acceleration time of 8.5 seconds, a claimed combined fuel economy of up to 65.7 mpg, and CO2 emissions under 115 g/km (NEDC figures). Key features include a dual-touchscreen infotainment system, a wide array of safety technologies like lane departure warning/prevention, and a premium feel, although some find the diesel engine noisy under hard acceleration.