By KBB.com Editors
Essentially mechanically identical to Chevrolet's Suburban, the 2010 GMC Yukon XL rides on General Motors' full-size SUV platform. Half-ton 1500 and heavy-duty 2500-series models are available, with rear-, four-wheel or all-wheel drive. The standard engine size is a 5.3-liter V8 that can operate on either gasoline or E85; 2500 models feature a 6.0-liter V8. Buyers who step all the way up to an extravagant Yukon Denali gain a class-leading 403-horsepower 6.2-liter V8, available all-wheel drive and upgraded level of features and luxury appointments.You'll Like This Car If...
If you frequently need to carry plenty of cargo along with a sizable group of passengers, the full-size 2010 GMC Yukon XL is one of the few available choices. Yukon XLs are loaded with equipment, but the sticker price rises rapidly if you select a few options – or move all the way up to the plush, top-of-the-line Denali.You May Not Like This Car If...
If you like to breeze past gas stations without worrying about what it's costing you to get down the road, a Yukon XL won't bring smiles – despite the new multi-displacement system that improves fuel economy.What's New for 2010
New for 2010 is OnStar 8.2 with long range remote and traffic control, a center console-mounted USB port and enhanced battery charger for some handheld devices. Under the Yukon's hood, the 5.3-liter V8 is now E85 compatible, while the big Yukon Denali's 6.2-liter V8 gains Active Fuel Management cylinder deactivation. Other mechanical changes include a new 3.08 rear axle on Denali for improved fuel economy and an available two-speed transfer case on four-wheel-drive models.Driving It Driving Impressions
The Yukon XL – especially in Denali form – is a refined, if flamboyantly oversized, family and cargo hauler. The six-speed automatic transmission, now standard on all XLs, responds with less harshness than the old four-speed and with less-noticeable delays. We also noticed a richer exhaust note from the 6.2-liter V8 than the 5.3-liter engine. Despite energetic start-off acceleration, it's not quite as vibrant when passing. Ride quality in the Denali is hardly truck-like at all, and it feels secure in curves. Expressways are the Denali's strong point, where an appealing ride blends with excellent stability and easy control.Favorite Features
Active Fuel Management Technology
Don't expect gas-mileage miracles from the new cylinder-deactivation system, but, when dealing with heavy vehicles, even a modest fuel-economy improvement is worth the effort.
Available real-time damping lets a Yukon XL cross the line from acceptable ride comfort into a tempting – perhaps even delightful – road experience. You won't forget you're in a truck, but an Autoride-equipped Yukon XL promises more pleasant hours on long hauls.