If full insurance is not paid, some funds must be reserved for repairs and accidents. Of course, routine maintenance must be also added.
The form below helps in computing all costs:
Unless car is often used (at lest twice a day), it may be cheaper to use a taxi. Another conclusion is that buying a large car because needed for vacation days is more expensive than buying a small one and renting another one when necessary. Of course, one could introduce additional items in he equation, such as time needed to find a parking place, personal image value. Maths helps us to do informed decisions.