The standard car window sticker I’ve seen at normal car dealerships does have information on the expected gas costs. https://commons.m.wikimedia.org/wiki/File:F

The standard car window sticker I’ve seen at normal car dealerships does have information on the expected gas costs. https://commons.m.wikimedia.org/wiki/File:Fuel_economy_label_EPA_2008.jpg https://commons.m.wikimedia.org/wiki/File:Fuel_economy_label... TCO information is probably harder to estimate but if it were done in a standardized way Tesla would probably suffer given how unreliable their cars are and all the maintenance horror stories of cars being in the shop for months and months due to backlogs and backordered parts... Consumer Reports and other independent agencies do try to estimate some of this I think.