Yesterday I drove the Mark 250 miles, (the longest I have ever driven it) About 30 miles from home I started to smell gasoline. I pulled over and looked under the hood saw and smelled nothing. I also looked under the car for leaks and nothing. The car ran smooth with no problems or check lights through stop and go traffic the rest of the way home, but with the gas smell still there. I looked it over today and drove it about 30 miles total with the air blowing and no gas smell. Any thought or ideas? I really need to figure out what caused it but don't know where to begin without spending a fortune. Anyone else ever have this happen? I want to take the mark on a trip with the family in late July, but not if I don't have this problem fixed.