So is that Internet slang for "Sex Concept"? Just what Chevrolet needs, another SUV. Production on this pup will begin in 2006 as part of Chev's global growth initiative, which will add models in nearly every conceivable market worldwide. The S3X is slated to be Chevy's first diesel-powered vehicle in Europe, not to mention their best attempt at recreating the BMW X5. I've already got the marketing slogan lined up: "Have you had S3X today?"