This more luxurious version of the Chevrolet Tahoe uses a 5.3-liter V8 and six-speed automatic that returns 16 mpg and doesn't feel particularly energetic. Ride and handling are not stellar, although the Magnetic Ride Control suspension on the Denali version improves ride comfort and handling response. The 6.2-liter engine is a meaningful upgrade. Proper optional equipment gives the Yukon a towing capacity of 8,500 pounds, about the only advantage it has over a car-based SUV. Like in the Tahoe, the third-row seat is low and tiny. Lane-keeping assist, blind-spot monitoring, and cross-traffic alert are optional. Reliability has been much below average.