Built on an improved chassis frame, the stylish, new 2015 GMC Yukon is reengineered for better aerodynamics and a greater level of interior quietness. Offered in two-wheel and four-wheel drive models, the 2015 GMC Yukon is defined by SLE, SLT and Denali trim levels. SLE and SLT models receive power from a modern 5.3 liter EcoTec3 V-8 engine producing 355 horsepower. Direct injection, FlexFuel capability and cylinder deactivation are part of the 2015 Yukon‘s new 5.3 liter powerplant. Electric power steering, Stabilitrak electronic stability control, air conditioning keyless entry and four-wheel anti-lock disc brakes featuring Duralife brake rotors is included equipment on 2015 GMC Yukon. Inside, all 2015 GMC Yukon sport utility vehicles receive the IntelliLink infotainment unit operating through an eight-inch touchscreen. A number of media and power ports are found inside the 2015 GMC Yukon for enhanced interaction with mobile devices. The 2015 GMC Yukon fitted with the luxury-appointed Denali trim includes standard magnetic ride control, 20-inch wheels, power-retractable side steps and an upscale leather cabin. Another characteristic of the 2015 GMC Yukon Denali is found under the hood as a 420-horsepower 6.2 liter EcoTec3 V-8 allows for better performance. A six-speed automatic transmission channels power from either EcoTec3 V-8 engine. Boasting an all-new cargo management system, the 2015 GMC Yukon offers up to 94.7 cubic feet of storage space when the rear rows of seating are folded down.