I agree the 140 oozes over the road like thick motor oil. Its one of the smoothest riding cars I have driven and I have driven many of the American Marshmellow boats. Part of the ride quality I think is psychological. The car is built like a bank vault with double pane glass and lots of sound deadening. Its an extremely quiet car. Match an ultra quiet cabin with a good suspension thats good at absorbing road feel without being boaty and you have a car thats an effortless pleasure to drive. Of course its always pretty darn noisy in my car but I think thats due to the Bose Sound system