I've heard that, but I know its a rumor. Toyota initially wanted to replace the Supra with something along the same genes, so would thereby be from Toyota, and not Lexus. But seeing how the trend is going with the NSX, and soon the U.S. GT-R (X35), being propped up in their respective luxury car divisions, they might just stick the GT5000 or whatever they will call it, into Lexus.