I usually keep the battery level display at percentage and not range, but when I swapped it over to see what it says now, it shows 290 after charging to 90%. That projects to 322 at 100%. (I remember it was 279 at 90% before, projecting to 310.) I'm on 8.5 and didn't check when it was 5.15. I agree with the majority and don't think they made anything more efficient--just re-calibrated the software to show what the car was already capable of doing.