Buick updated its LaCrosse with a front-end design inspired by the Velite convertible concept and an improved list of standard equipment across all LaCrosse models for the 2008 model year.

Like the recently introduced Buick Enclave luxury crossover and Super models, the 2008 LaCrosse features a more distinctive front end. The new design brings the 2008 LaCrosse sedan in line with a common Buick family appearance. The fascia, hood and chrome waterfall grille are new. The 2008 model will also offer four new exterior colors, including Scarlett Red, Gold Mist Metallic, Dark Mocha Metallic and Dark Slate Metallic.

More comfort and convenience features are now standard for CX, CXL and CXS models for 2008. The LaCrosse CX, for example, is a richer entry-level car, adding a leather-wrapped steering wheel, theft deterrent system, illuminated vanity mirrors, driver information center personalization and more. All trim levels now have a chrome exterior appearance package, factory remote start feature, XM Satellite Radio, telescoping steering wheel column, redundant steering wheel controls and dual-zone climate control as added standard equipment
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The LaCrosse line now offers three powertrains. The CX and CXL trims are powered by the 3.8L V-6, now in Series III form. Rated at 200 horsepower (149 kW), the 3.8L features electronic throttle control to improve engine response and optimize fuel efficiency, along with upgrades for quiet operation.

The performance-oriented LaCrosse CXS has a standard 3.6L V-6 with variable valve timing that delivers 240 horsepower. The all-aluminum engine features dual overhead camshafts and four valves per cylinder. Its fully variable intake and exhaust valve timing delivers 90 percent of the engine's peak torque where it is most useful, between 1,500 rpm and 6,000 rpm.