Thank you for the help. In case anyone comes across this post wondering the same thing, you can only show KWh/100Km vs Km/KWh or mi/KWh if the units are set to Km instead of mi. If you have it set to miles for units the option to change the efficiency breakdown goes away.Page 9-88 of that second EV6 manual - Car Infotainment System Quick Reference Guide - may be what you are looking for. That manual isn't online so I can't do a screenshot.