There are a couple of 06 IS350 that are pretty damn nice and a lot cheaper. I don't see a whole lot of difference compared to the 2014/15 model in terms of engine performance or styling to be honest but I'm no Lexus expert. First one comes with 3 sets of wheels ... I think he is on this board, saw it on the FS section. Really reasonable mileage for a 10 year car. And you can save yourself ~$20K.
2006 SR Motorsports Lexus IS350 IS 350
2006 Lexus IS 350 *No Accidents*