Fun car for 2-3 months

Hi, me and another college are both 19 and 18 and we wanted to get a car for a few months in the winter, our parents have cars that we also use but you have to ride the gently, I hope you understand what I mean. We once thought of getting an old audi 100 or something like that for a few hundred euros, the car should keep even a few thousand km after that the wear is probably scrapped. now my question: what would the insurance give us the registration cost, can help me vlt someone a little further and which dare you would recommend us … the car should already have the 100 ps, no fear I can handle with a lot of performance quite well, papa drives a 740i. thank you already young and girls