Buick Envision Concept

The guessing games continue, with General Motors releasing more details about its Buick Envision concept car that give tantalizing hints of a concept stuffed with technology, but without the benefit of too many metrics. Following the release of a sketch two weeks ago, now GM has released a whole set of concept photos. We'll be eager to see the actual car in the flesh once it's revealed at Auto Shanghai, which starts tonight (Tuesday morning in China). Buick sells three times as many vehicles in China as it does in the States, so Chinese buyers--and future buyers--are the market for this...