Last night while driving with the cruise set at about 80 all hell broke loose! It sounded like I had a blow out. I pulled over to the side of the road and car was dead. It wasn't a blow out. Tried to restart and it started but sounded funny and ran VERY rough then died. Didnt try again. The tow truck driver suggested vapor lock but I doubt it. Filled up with gas about 75 miles before trouble(water?). Any ideas? Its a SRT 8 with 8400 miles.