Buick Gull Wing concept. March 08

The gull-wing, front-wheel drive Riviera concept coupe was developed with global design input by the Pan Asia Technical Automotive Center (PATAC), a design and engineering joint venture between General Motors and Shanghai Automotive Industry Corporation (SAIC). PATAC is headquartered in Shanghai.
Engineered to accommodate a new hybrid system that will go into production this year at Shanghai GM (SGM), GM's flagship joint venture with SAIC, the Riviera features several technological and manufacturing advances. They represent the latest achievements of GM and its partners in the promotion and development of alternative propulsion technologies in China.
"The Riviera concept, with its tightly stretched carbon fibre body panels, combination of positive and negative curves, strong front and rear identities and gull-wing doors, captures the essence of Buick classics, while presenting a thoroughly 21st century design," said Ed Welburn, vice president, GM Global Design.