So im 18 and about to buy my own car that is separate from my parents so naturally i want to have a little fun. Im thinking of getting a used GTI because they fit within my price range and are a great platform to work on. i dont know if it would be right to slap a stage 1 APR tune on it if it has too many miles as most cars that are out there have a minimum 50k miles. I also want to put in a new screen and install something that has apple carplay. any advice or tips are greatly appreciated. kinda just want to get some feedback on the whole situation.