driveing home the other night the car stumbled twice, rpm fell hard then picked back up, then the car died. RPM's went to zero, everything else stayed on, as I pulled over to the shoulder, the car kicked back on. ~~~???? I kept going and at the next stop light it just died. It would not start right back up, crank but no fire. I checked connections under the hood, and all was fine, after a few minutes it fired up but under a distressed, hard crank. It hasn'r done it again, but I'm sure it will. Any ideas? CEL isn't on or anything.All this happened after a 30 minute 70-80 mph ride home. No over heating or anything, I was thinking maybe fuel filter got clogged up or something, ignition module going, basically I don't kow.....