Whats the best first tuner car?

im 18 and have a job. im looking to spend 10k on a car with payments of course. im pretty big into the tuner scene and i know a bit about cars. i want to drift but its hard to choose what i want. i want a 240 but to hard to find one thats not beat up. so i think imma go with a newer car. thinking about rx8 but gas is so bad. and 350z is a choice. but so far i was thinking about rsx-s. i know i wont be able to drift but that gas just cant beat it. so if you guys have anything you want to put in feel free to advise. and what mods i should put in first. im thinkin CAI, headers, and exhaust. let me know.. thanks