Is it possible to buy a used $10k car on credit and sell it back after 2...

[Adam S]

...months? How much would this cost? I'm a young professional with a steady income. I want to own a convertible, but only for the summer. I've never bought or sold a car. Is it hard to sell a car online if you know nothing about cars? I understand there will be some expenses involved with this, I've gotten an insurance quote ($273/month) so I know how much that will be, and I looked up vehicle registration & plates ($90+$10). Also, I would be borrowing about 8 or 9k over three or four credit cards (I have good credit). I would be using the money from the sale of the car, plus any new money to make sure it all gets paid back as soon as I'm done. Is this risky? What should I look out for? Also just for reference, the car is about $10,000, and I can raise about $500/month towards this for any unexpected expenses.