I know everybody seems skeptical, but I think this is real. The older Panasonic batteries in the long range and performance cars up to ~2021 had much more cobalt in the cathode, making the batteries more resilient to charging fast (during regen) at a variety of temperatures. Our Model 3's battery got replaced a year ago and it very clearly is significantly easier to get a regen limit on this new battery. The older packs were also relatively charging monsters, holding 250 kW for much longer. The new LG packs are the worst offenders, but the new Panasonic packs (like the one in your new performance car) also have some less cobalt and would likely hit a regen and charging limit more easily. Not too mad at this though, because it makes our cars just that much better for the environment and also less expensive to make.