Buick Avenir Concept - Ed Welburn proudly displayed his teams new Buick concept at the  North American International Auto Show, the Avenir. As the largest selling American import in China, Buick plans to take its product line upscale in hopes to regain the glory days that it once enjoyed in the United States. As with all concepts and design studies, if you like it, then most likely what you see will show up in future designs.