Just took delivery on a 2020 Model S this past December and was expecting it to be perfect since the model 3 purchased a year ago has been perfect. When driving at stop and go speeds on the freeway have a loud thud sound coming from the rear end when pressing on and letting off the accelerator. Can also feeling it in the car. Not transitioning to 0 mph smoothly like the Model 3. Was told by service that it is an issue with the new Model S and X's. Told it is because of new Raven parts in the drivetrain and that the engineers will be working to fix. Interesting since the service manager sent me an invoice stating the car is performing exactly as expected. Anyone else noticing this problem.