$3000 may be enough to finance a car but with parking fees,
ERP, insurance, maintenance and etc, there is not going to be any 'comfort.
I bought a car when I was in the exact circumstances you described. I sold the car after 1 year and embraced public transport. Now I earn more and still I don't think I can comfortably own a car. Not if i want to be able to dine out or travel once in a while.