The 2017 GMC Yukon XL Denali is a large and luxurious SUV. It’s also powerful thanks to a 6.2L V8, which is rated at 420 horsepower and 460 lb-ft. It’s backed up by a 8-speed automatic transmission. This SUV is also fully optioned, and it is very heavy.
How quick is it at 0-60 MPH at a mile above sea level? Check out our live review.
