This is a harsh response but:
Buy a different car then. Most likely a civic, corolla, echo, prius, or TDI.
Transportation isn't a static cost, if its necessary that you have private transportation, then find something that is within your means.
Hell I was going to buy a 2000 SS, but when I found out that insurance was insane ($4000/year) and with rising gas prices, I had to settle for a more 'economical' CSVT.
If I couldn't afford the gas on the CSVT, I'd most likely have gotten a TDI.
