After owning a 2020 Model Y Perf since they were first released, I finally drove a 2021 Model S. Was it my imagination, or is the accelerator pedal in the Model S considerably more stiff? The pedal in the Model Y has been absolutely dreamy, making the who one-pedal-driving experience second nature in minutes. In the S, it felt like the range of motion was decreased stiffness was increased. Am I nuts?