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Performance

The new V8's 311 horsepower and 325 lb.-ft. of torque are routed through an all-new six-speed automatic transmission. From there, power is distributed to all four wheels by a standard all-wheel-drive system that's been upgraded to handle the additional power of the V8 engine.

The AWD system also features a new "Instant Traction" design that automatically transfers power to the wheels with the best grip even more quickly than the previous generation. Like most AWD systems, however, this set-up is designed more to provide added peace-of-mind in inclement weather than it is to tackle serious off-road excursions.

The new drivetrain package gives this sophisticated SUV a healthy kick in the pants. Volvo claims the XC90 V8 will accelerate from 0-60 mph in a very respectable 7 seconds - about 1.5 seconds quicker than the six-cylinder T6. Maximum towing capacity remains unchanged at 5,000 pounds, though it's safe to assume the V8's added torque would allow it to pull that load with a good bit more authority.

All those SUV lovers with a vaguely guilty conscience will also be glad to know the new motor is the cleanest eight-cylinder engine ever offered in an sport-ute. Using four catalytic converters and adjustments to idle speed and air-fuel ratios, the new Volvo V8 earns an impressive ULEV II certification from the Environmental Protection Agency, a rating no other V8 powerplant has achieved. Even fuel economy is reasonable -Volvo estimates 17 mpg city/20 mpg highway - though the engine does require pricey premium fuel.

Design

Much of the XC90's popularity has to do with its handsome styling, so the fact that the XC90 V8's exterior remains largely unchanged is welcome news.

Visually, subtle details distinguish the XC90 V8 from its five-and six-cylinder siblings. Chrome "V8" badges on the grille and tailgate are the most obvious differences, but other unique design details include color-keyed door handles and body-side moldings, a graphite-colored grille, and dual exhaust outlets. The overall effect is that of a sharply dressed businessperson in a well-tailored suit.

That class-leading act continues inside, where the XC90 V8 is virtually identical to the existing models, with comfortable seats and well laid out controls.