Do gas cars get advertised mileage on steep hills? I don't believe so.
I'd still reckon that range estimates should ignore these extreme edge cases, though.
This is one of those comments that continues to come up but has never added up. Certainly if you are comparing a Tesla compared to a compact or a Euro version of a compact. Absolutely there is a weight difference. The problem is if you did a like for like comparison..a Model Y is the same Weight as an X3. A Model 3 is a couple hundred pounds heavier than a Toyota Camry.
Batteries are heavy!
https://www.carsized.com/en/cars/compare/volvo-xc40-2017-suv...
Stop that. 10 - 15% doesn’t constitute “much, much”.