I have a 2008 Saturn Aura. Last spring I had an incident where I was driving on a highway (60mph or >) and the car started to decelerate and the gas pedal didn't respond. I pulled off the road, and the car wouldn't start, but the radio worked. By the time AAA came, the car started and I didn't have another problem for 10 months. I did take it to the dealer after the first episode, and they couldn't find anything. Recently I had 2 similar episodes on the same day, one hour apart. I was again driving on a highway. After 5-10 mins, the car was able to be started again. I feel like it's a waste of money to take the car in to the dealer again, since they didn't find anything the first time. Has anyone had anything like this happen? Any idea what might cause this to happen? I appreciate any responses.