MY 1999 Acura has 108K miles on it. On a trip this weekend the car just shutoff while I was doing 80mph on the highway. This happened after I had been driving for 2 hours and stopped for a 10 - 15 minute break. The car started fine. 2 minutes later, the engine shutoff. No hesitation or other indication, the engine just shutoff. Never lost electric. Car would not restart until about 2 -3 minutes later. Ran fine after that. Same exact thing happened on the return trip, only after it was driven 1 hour solid. Any ideas? Scared the crap out of me.