On the topic of buying cars at a young age, My first car was a mini cooper S, that I bought when I was about 14-15. I payed $270 for it and spent a year or so tidying up the interior and learning how the motor worked and so on. In that time I learned that the car sitting in the driveway was worth quite a lot of money so I sold it half done for $3000 profit. And yes that was the first and last car I will probably ever sell for a profit.