Buick will probably be fine. Buick Verano is already going to be discontinued in the US due to slow sales, and the Encore/Mokka was primarily designed by GM Korea so not significantly affected by the deal. Cascada will probably be discontinued after the normal lifecycle; it's a niche product anyway. Next LaCrosse will probably be designed in China, like the Envision. Expect to see more Chinese Buicks overall going forward.