At this point in time, any RWD car you get will be easily approaching 20 years of age and will require good maintanance and a good chunk of money reserved for repairs. Just off the top of my head, you could get a Mark X, BMW E60 525i/530i, Toyota Crown, Mercedes C200/E200 etc. You can browse used cars on Pakwheels/Olx to find more such cars. But before buying anything, do thorough research on the vehicle, its modifications and its support in the local communuty.
Also, please for the love of God, don't drive as a minor. Its not really worth it to get in any trouble while driving illegally. Best of luck!