The 1st gen RX7s are extremely reliable if kept stock. I've had lots of them over 200K miles, and know of one near here that has never had any real work done and it's over 300K. However, in your situation, you have no need for a car yet, so save your money. Also, since it is you main source of transportation, why wouldn't you look for a newer vehicle - F150s sell for $2K all the time, and are plentiful. You can use that to make more money and get a better car later. Work on generating income first.