If I were you this is what I would do.
I would get a beater. $1000 geo metro and take your other car off the road. You'll save a ton on gas, keep your car, save a ton on insurance since you can just get liability insurance.
Bet if you really sat down and tried to figure it out that would be your best bet. Save you even more money and you get to keep your car.
Has everyone seen my daily drive? I have 5 cars all paid for and this is what I drive daily. Saves me alot of wear and tear on cars I actually give a **** about.