I want a 2005 Ford Mustang. I have a 2002 Ford Explorer XLT. Do you think I could do a trade in?

you could get about $5000 for you car. If you were smart, you would keep the car you have since it doesn't have problems, save up $2,000, sell your car on craigs list for cash and walk into a dealership and find a car about $10,000 and say you'll give them $7,000 cash. Then you wont have that extra monthly payment.