My March 2018 S75D with 16k miles has always indicated 203 rated miles of range at 80% consistently since it was new. Wall charger always used at 32 amps, supercharged less than 10 times, never drained below 10% or charged higher than 90%. I don’t know how much of that really matters, but I have tried to do the things some people think help to maintain range over time. I agree that 268 was likely ideal instead of rated - I have never seen anywhere near 268 rated miles at 80%.