There should be, but it may be so subtle that some people only notice a difference in fatigue after driving. The AP1 models had a more discernible difference, and their "Sport "was probably only as heavy as newer models' "Comfort" but their "Comfort" was everything I want (so light that most people would probably prefer "Standard" or "Sport"). The difference is so significant between the AP1 rack and the AP2+ rack that I felt bait-and-switched when I bought my 2017 after test-driving a 2016 (not Tesla's fault in this case).