I have a 2019 i3S Rex. When fully charged, the battery usually says 150-165 (it is always different, LOL...yay BMW)
Rex mileage changes from high 60s to high 70s.
Pure battery range seems to be between 100-135ish, depending on temp. Temp REALLY affects the battery range, even more than heavy accelerating.
2019 i3 Sport Rex. Capparis White/Frozen Blue. 20" black wheels. Tech & Driving Assit Pkg, Moonroof. Deka World.