Buick cars: What's new for 2007

ALL MODELS: The warranty now covers the powertrain (engine, transmission, and parts that deliver power to the wheels), roadside assistance, and courtesy transportation during warranty repairs for 5 years or 100,000 miles (160,000 km).

LACROSSE: Minor interior styling tweaks, new colors, and some shifting of standard equipment differentiate LaCrosse for 2007. A 300 hp V8-powered LaCrosse Super will appear some time this year as a 2008 model.

LUCERNE: The big Buick gets some changes in standard equipment, new exterior colors, and a touch-screen for the navigation system.

MORE 2007 BUICK INFORMATION:

• 2007 Buick Minivans