General Motors has released new photos of the Buick Riviera Concept, which reminds us that we are that much closer to getting our first up-close look at this concept designed in China. The Riviera, which made its debut at the Shanghai Motor Show last year, will make its first North American appearance in Detroit in just a few days. Designed at GM's Pan Asia Technical Center, the Riviera will supposedly set the tone for the next generation of Buick vehicles. Design highlights include carbon fiber bodywork, gullwing doors, and a futuristic interior with blue ambient lighting. We doubt much of that will ever make into a production vehicle, but we do give two thumbs up to the team that designed the exterior.