Originally Posted by dscivicdx

huh?
a mile per hour is exactly that, a mile per hour. at 55mph, you travel 55 miles in an hour.
if your going 80mph, in an hour you would be 25 minutes ahead of a person going 55, after 2 hours you would be 50 minutes, after 3 you would be 75.
when i was a kid, it would take us about 14 hours to get to Macon, GA going 55mph. a few years ago, i made the trip to Boone, NC in 12 going 80mph.