Utilize the input text as a context reference, choose the right relationship between Buick LaCrosse and Buick from the options. Options: product/material produced, manufacturer, distributed by, industry, position held, original broadcaster, owned by, founded by, distribution format, headquarters location, stock exchange, currency, parent organization, chief executive officer, director/manager, owner of, operator, member of, employer, chairperson, platform, subsidiary, legal form, publisher, developer, brand, business division, location of formation, creator.

The expansion covers the 2005 Buick LaCrosse and the 2007 Pontiac Grand Prix in the U.S., as well as the 2005 Buick Allure in Canada.

Answer: brand