The interior is also remarkably quiet, enhancing the ability to hold hushed conversation as well as hear the surround sound system without extraneous noise. Even more remarkable is the plush ride. The Escalade models we've driven were shod with the optional 22-inch wheels and low-profile tires, and we'd expected them to transfer more road vibration and harshness than they did. We haven't driven any of these vehicles with the 18-inch wheels, but expect them to offer even softer ride characteristics. Handling crispness and body control are also impressive, considering the Escalade's formidable mass.

All Escalades are powered by a monster of an engine: a huge 6.2-liter V8 that produces a whopping 403 horsepower and 417 pound-feet of torque. Acceleration is astonishing for such a tall, heavy vehicle. A pleasing growl is emitted when accelerating briskly; otherwise, the engine is virtually silent.

Certainly, there is plenty of power to pull a trailer with ease. The Escalade is rated to tow a 7500-pound trailer, a rating that is curiously lower than that of the Infiniti QX56 and Lincoln Navigator in spite of Escalade's significantly more powerful engine. Then again, tow ratings are not an exact science. Installing a trailer is made easier by the Escalade's rearview camera, which incorporates a camera in the liftgate to provide a view behind the vehicle when backing up projected onto the navigation screen. It's a very useful feature when parallel parking or whenever backing up close to another object.

All Escalades come with a six-speed automatic transmission that shifts imperceptibly except during full-throttle acceleration. A Tow/Haul mode holds gears longer, or the driver can select gears manually via a button on the shift lever. The multi-information display in the instrument cluster clearly displays the selected gear.

The Escalade comes with either rear-wheel drive or full-time all-wheel drive; EXT and ESV come only with AWD. The all-wheel drive system is on-road biased, with no low range for creeping through boulder fields.

As indicated, the Escalade's four-wheel disc brakes come standard with ABS and electronic brake force distribution (EBD). The powerful brakes proved to be quite responsive and more than up to the task of bringing the big truck to a halt with little drama and surprisingly little brake dive. The pedal feel was good, if not as pleasingly firm as its German competitors.

The Stabilitrak electronic stability control system manages wheel slip by applying the brakes at the slipping wheel without interrupting power deliver to the wheels with grip. Stabilitrak also helps maintain stability in corners by braking individual wheels when the vehicle's path doesn't match the driver's intentions.

Fuel economy for the Escalade is estimated at 13 miles per gallon city and 19 highway, which isn't exactly miserly but not as bad as it could be, considering the power and weight of the vehicle. And it's right in line with competitors such as the Infiniti QX56 (13/18 mpg) and the Mercedes-Benz ML500 (15/19 mpg).