The result of the streamlined body is optimal fuel economy, according to GM. Automotive engineers judge wind-cheating aerodynamics by a factor known as the coefficient of drag. The lower the number, the slicker the vehicle. The Tahoe has a Cd of 0.363. And the Hybrid model is even more slippery, with a Cd of 0.34. For comparison, the smaller but extremely sporty Porsche Cayenne emerges from the wind tunnel at a less slippery 0.38.

Up front, the Tahoe features a clean interpretation of Chevrolet's two-tier front grille with a central bowtie logo. Tow hook openings flank the license plate frame and they are, in turn, flanked by fog lights. The sides of the Tahoe have little ornamentation, yielding a smooth design. Tall side glass allows for an unobstructed view of the road. And at the rear, the liftgate has separate opening glass to offer easier loading of small items.

The smooth appearance doesn't mean the Tahoe looks soft. Built on a wide frame, this is a commanding vehicle with a strong stance. A bulging hood enhances its visual strength. Further boosting the muscular look are standard 17-inch wheels, with 18s and 20s available.

The LTZ model can be distinguished by its standard 20-inch polished aluminum wheels and use of chrome accents on the door handles and grille inserts.

The Hybrid model has several distinct characteristics. To reduce weight and drag, the front end features an aluminum hood, a lowered air dam, a slightly larger grille opening, and blocked off fog light and tow hook openings. Along the sides, the running boards are tapered front and rear for improved aerodynamics and the wheel flares are slightly reshaped. At the back, the rear pillars and center high-mounted stoplight have a unique shape, the tailgate is made of aluminum and has fixed glass, and LED taillights replace the standard bulbs. The wheels are more aero efficient and the tires have a lower rolling resistance. The spare tire and jack have been replaced by a tire inflation kit.