At the Tokyo Auto Salon, Lexus revealed the racing version of the IS-F sedan. And even if Lexus said "It is only a research prototype", the IS-F Racing Concept will be used at the DTM (Deutsche Tourenwagen Masters) racing.
But if you were wondering if this is a SuperGT car, the answer is "No". Lexus will continue as planned and in the 2008 season they will use the usual SC430 Coupe.