Breaking into luxury: Buick upgrades Avenir from concept car to sub-brand

Buick may not be luxury enough for some buyers, but it's hoping to fix that with a new sub-brand. Building on the Avenir concept car unveiled last year, first at the North American International Auto Show in January and then again at Auto Shanghai in April, the new sub-brand carries the same name. Avenir, the French word for future, suggests Buick sees a strong role for itself in the luxury segment moving forward.