I have a 2006 Kia Sportage, it has about 120,800 miles on it. Today, it started acting funny. A few times when I was breaking, the car was a little "jumpy". It would speed up and then slow down. Today when I was driving home and stopped at a stop sign, the car shut off. I restarted it and it was fine again.

What can possible be wrong with it? Do I have to buy a new car? Is it goign to be really expensive to fix it?

love,
momo