Since it's launch in Japan in 1998, the Lexus IS series has always had at least four doors and, for a while, was offered with five. But Toyota's 3-Series challenger has never directly taken on the Munich's coupe or convertible models. That may change soon though as Lexus' Australian Manager John Roca has dropped a hint about an IS coupe. In a press release for a limited edition IS250x Roca is quoted as expressing excitement about upcoming models including "the V8-powered IS-F and potentially, an IS coupe in the future." It will be interesting to see what Toyota has on their stand at the Tokyo Motor Show in October.