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HIGHS
Subtle V-8 baritone, clean interior design, lots of room, quiet operation, good road manners. |
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LOWS
Forgettable styling, four-speed automatic, pricey V-8 option, tepid standard V-6. |
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WHAT'S NEW
Introduced for 2006; ’08 models get optional lane-departure warning system and blind-spot alert, standard XM radio. The Super badge returns. |
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BEHIND THE WHEEL
Serene cabin, competent dynamics, and smooth ride, but the fun index is low. |
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CAPSULE REVIEW
This is Buick’s top-of-the-line sedan, offering a V-8 engine option in the grand Buick tradition. It shares its solid front-drive foundations with the Cadillac DTS, and is a quiet, relaxed-fit full-size car that is smooth, competent, and unlikely to appeal to anyone under 50 years old. |
Editorial by: Car and Driver
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Engine, Northstar 4.6L DOHC V8 (275 hp [205.1 kW] @ 6000 rpm 295 lb-ft of torque [398.2 N-m] @4400 rpm)
Transmission, 4-speed automatic, enhanced electronic
Traction control, full-range, powertrain- and brake-modulated
Battery rundown protection
StabiliTrak, stability control system with Brake Assist, senses where drivers steer and helps them stay on course. If emergency braking is sensed, Brake Assist optimizes braking at each wheel
Suspension, 4-wheel independent, Sport-Tuned
Automatic level control, electronic
Tires, P245/50R18, all-season, blackwall
Wheels, 18" (45.7 cm) Bright Silver finish aluminum
Wheel, 17" (43.2 cm) compact spare
Steering, power, magnetic, variable-assist, rack-and-pinion
Brakes, 4-wheel antilock, 4-wheel disc, dynamic rear proportioning
Exhaust, dual stainless-steel with chrome tips
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