Well, we'll tell you: at least as far as the Opel Monza concept goes, it could mean a lot. Ever look at a concept car from a foreign auto marque like Opel and wonder what relevance it will have to ...

there has been much speculation regarding a Buick convertible of sorts. The most ringing endorsement of this conjecture comes today from General Motors Europe, as the new Opel Cascada has debuted ...