<prompt> Human: So I drive a 2001 Saturn L300, with 176,000 miles on it, my dad bought it new 18 years ago and gifted it to me about 5 years ago for graduating college. Ive had numerous repairs done on it: replaced radiator, EMC, fule lines, coolant lines, windshield, both O2 sensors, catalytic converter sensor, probably some other minor stuff Im forgetting. All in all Ive kind of been going by If the 6 month average cost of maintenance stays under 600, its cheaper than a car payment would be. This doesnt take into account millage though, I get about 22mpg, year to date Ive spent about 650 on gas.Is there any type of calculation that can help me determine if its worth maintaining this car vs buying a newused car? Some other things: I can smell gas when I get out of my car again meaning theres another fule leak that needs to be patched or the part replaced, thatll probably set me back another 300 - 500ish depending on the repair needed. The raido is completely shot, only one speaker works, the tape cassette is failing, aux cable to cassette is how I plug my phone in the whole system needs to be replaced, quotes on that range from 600 - 800 depending on what level of equipment I get. Im trying to figure out if its worth it to keep this guy for a few more years or if I would be saving money in the long run by upgrading.  <response>: Youll get nothing on trade in, so you might as well drive it into the ground while also saving for a down payment on a new car, and doing what you can to improve your credit score. 