I was thinking about why Lexus doesn't make this vehicle. But than I realized that the IS is getting a little long in the tooth. I remember playing Grand Turismo 2 I think it was racing the Altezza and this was years before the IS300 even came to America. So its got to be up for a big redesign soon enough. And Toyota and more so even Lexus (since it effects the name of the vehicle) don't usually change engines mid-body style that much unless it is an outdated engine. So I wouldn't be surprised if the new IS we get is a 430.