I am very suprised that the LS460L came in last. It seems CarandDriver is too biased in choosing more of a drivers car. I highly doubt I will ever bring my Benz or Lex to the track.
For the BMW, Benz, Audi, and Jaguar you are the driver...
For the Lexus, you are the passenger...
Its just design. Lexus really wanted Luxury incorporated into the car. It isn't meant or designed to be the noisy sporty luxury car! It was designed to be super super quiet and smooth.