A model 3 RWD the rental version will charge from 20% to 80% in 20 minutes if it is at a Tesla supercharger 170kw out of the 250kw or 350kw CCS in that case. A model S will use the full 350 if available.So no not an hour and a half you have to return it at 75% or more or just pay the $25 drop off at any charge level fee. Nearly every 4 star or up valet hotel will L2 charge a Tesla as part of the valet parking package. Most people who rent a car in a city on travel are going to drive 200 miles or less on that rental which means they will never need to charge if they paid up front for it. Which at $25 for hertz returns is cheaper than the pre paid gasoline options every one of them. Most people who rent a car in a travel city are using them to get from the hotel to the meeting nearly always less than 10 miles round trip otherwise you chose poorly on your hotel rental. And then night life and dinner again even Houston the largest metropolitan area by size from end to end is on it 40 miles across. So if you went edge to edge every night for dinner and nightlife you would have 3 nights before you needed to charge a Model S. No one does this so it’s moot.
I don’t care... It takes less than 7 minutes to fill my car up with good ole’ gas.