Even those who can afford a full-size luxury SUV like the 2009 Cadillac Escalade are feeling the wallet pinch at the gas pump these days, so they'll be happy to hear that the biggest change to this powerful, truck-based, seven-passenger SUV comes in the form of a new hybrid version for 2009.

The two-mode hybrid system, taken from the Yukon, consists of a 6.0-liter V8 gas engine and two electric motors powered by a 300-volt battery. Together, they deliver 332 hp and can tow up to 6,000 pounds in rear-wheel-drive versions (5,700 in AWD). The two modes mean at low speeds (30 mph and under), the electric motors only supply power, but as you increase speed, the gas engine eventually kicks in and then takes over. Early driving tests report a seamless and imperceptible transition between power sources, detectable only by watching the power flow monitor on the dash. The system features regenerative braking and engine cutoff while idling or stopped, to improve fuel economy, as well as Active Fuel Management, which deactivates up to four cylinders when not needed. Mileage ratings have not yet been released, but the hybrid Escalade is expected to get 21/20 mpg, a slight improvement over the 13/18 mpg in the non-hybrid version.

The regular 2009 Escalade, available in both rear-wheel and all-wheel drive, also receives a few updates this year, including a blind-spot warning system and power tilt steering (oddly, no telescopic feature is offered). Under the hood sits a 6.2-liter, 403-hp V8, still one of the most energetic power plants in this segment. Paired with a 6-speed automatic with manual mode, the powertrain puts out 417 ft-lbs of torque at 4,300 RPM and achieves 0-60 times of 7.5 seconds. Towing capacity maxes out at 7,400 pounds, but carrying anything also drops fuel economy into single digits. Based on the truck platform shared by the Yukon and Tahoe, the 2009 Escalade delivers a solid, stable ride despite its large size. Braking is quick and responsive, though the large SUV tends to nosedive somewhat at sudden stops. Acceleration power remains top-notch, but the engine can be noisy at high speeds.

The roomy Escalade seats seven in three rows, with good legroom for first- and second-row passengers. An optional second-row bench makes room for an eighth passenger. The third row is cramped and not suitable for adults. Taking into consideration that they also do not fold flat and are cumbersome to remove, the third-row seats seem more a nuisance than functional. Cargo space starts at 17 cubic feet, but expands to 109. All the expected luxuries are there, including leather upholstery, power front seats and pedals, a power tailgate, wood trim, a 6-CD player with surround sound, and remote start. The Platinum trim adds Magnetic Ride Control, GM's new techno wonder that uses sensors to adjust the suspension according to road conditions.

The 2009 Escalade earns five stars in all categories of the NHTSA crash tests, except rollover ratings, in which it earns only three. All trims come equipped with ABS brakes, traction and stability control, dual front-side and side curtain airbags, and hill descent control. A standard backup camera helps tremendously with the rear visiblity problems caused by the thick roof pillars. Professional reviewers praise the Escalade for its superior power and handling, long list of standard features, and interior ergonomics. The use of plastics mars an otherwise luxurious interior, and the tiny third row and lousy fuel economy top the list of drawbacks.