The 2011 Buick LaCrosse received a 5-star safety rating for the National Highway Traffic Safety Administration's New Car Assessment Program. Starting with 2011 models, NHTSA has introduced tougher tests and more rigorous requirements.

"Car buyers today want the peace of mind that comes with buying a vehicle they know will help protect their family," said Tony DiSalle, vice president of Buick marketing. "This five-star overall vehicle score for safety shows Buick can equip an…