How much does it cost to own and operate a car?
Is an operating system that is available both in a free version and in flavors that you can purchase?
If the car registration is in your brother's name can you get insurance on the car if you are going to be driving it?
Seriously, if you own a Ferrari 355 F1 and have to ask the price of an oil/filter change maybe you should not own this car. It will cost what it will cost and you will have to pay whatever it costs. It also depends on if you trust someone other than a Ferrari dealer to change the oil or if you do it yourself.
It depends on the rate you get for renting the car. It also depends on several other factors such as the condition of your own car and the distance that you are planning to drive. It may be more expensive to drive your own car as there is a wear and tear cost associated with driving one's own vehicle.
How much would insurance cost if you were involved in a car accident that was your fault and both drivers have liability insurance?
How much will it COST? If you have a good record of several years without claims, your premiums may not increase, but if you are a new driver or have had prior claims the increase will be determined by your insurer and no one else can give you a definite answer. Or how much will it PAY? If it was your fault, your liability coverage will pay for the damage to the other driver's car…