Not that anyone hit my buzzer, but once again, the cost of owning, and driving a car is going to vary. Most repairs on imports are going to be more expensive than if you were to do the same on your 1990 chevy 1/2 ton. Tires vary in price because of size, quality, and longitivity, and you can take "quality" into any sense you would like. If you like offroading you're going to pay more for that type of tire, if you're a highway driver and want something with a relatively hard compound your going to pay more, if your a wuss and like snow tires, etc. Cars arent cheap, not to say that you cant cut down costs by doing some repairs yourself, making the repairs, and regular maintanence CHEAP-ER or knowing a few people who can help out with proper equipment, but ultimitly your going to run into a few problems that are a must to fix, that you cant just plop under your car in the driveway with a crescent wrench to fix. Simple things too. It all adds up, gas isnt cheap, you get the idea. And your not always going to find a sensor for dirt cheap, or have the time to have your car down while you wait for a 5 dollar o2 sensor on ebay that already has 80,000 miles on it. Parts can be cheap, but i would say more often than people put on they are not. Insurance isnt that cheap either. If you could get under your parents its usually dirt cheap if they have good records, as long as you dont start getting a driving record. But its still money spent.
    Im sure this isnt news to you, but I thought I would chime in again. I drive a pretty fuel efficent car, live in a small town in montana, and still will pay about 30 or so bucks a week in gas. Just put in 20 today, will probably last till monday.