Just renting a car is a good idea. If you add up the cost of loan repayments, depreciation, tax, and insurance and divide it my the number of times you actually use a car you probably come up with a silly ratio, but there will be a usage point where renting becomes financially much more feasible. I’d look for a car rental firm that would hold open an account, so you don’t need to do all the same paperwork each time. They just drop off the keys, and bill you monthly.