The 2012 GMC Yukon XL is a 3rd-generation full-size SUV. This four-wheel drive vehicle offers three trims: SLE, SLT, and Denali. The base trims are powered by a 5.3-liter V8 engine that produces 320 horsepower and is paired with a six-speed automatic transmission. The high-end Denali trim receives a 6.2-liter V8 cranking out 403 horsepower with a six-speed automatic. Notable features include a Bose sound system, a navigation system, and a DVD entertainment system. Key safety features include dual-front and side airbags, stability control system, and tire pressure monitoring system. Despite its size, the Yukon XL's ride quality has been praised for smoothness and comfort.