Does buying a car really make sense in a Zipcar/Getaround/Silvercar world? The numbers just don't work out IMO. Not once you factor in fuel, maintenance, damage, insurance, interest, car payments and/or depreciation, $300+/month in parking fees and the fact I still have to rent a bigger car if I need to pick stuff up or drop stuff off or shuttle more people. I gave my car to my parents a couple years after I moved to SF and have never looked back.
It's just so easy to get a car in SF whenever you need it for a few bucks -- sometimes in 15 minute increments.