First, is it safe to assume that roads labeled with an M are equivalent to U.S. interstates and can travel at 80 - 100 km? Also, are roads labeled with an N still 4-lane highways? Most of my mapquest searches seem to assume an average of about 40km per hour. Understand driving curvy roads as we are in the North Carolina mountains all the time and a map can be deceiving on how long it takes to get from Point A to B. Mostly wondering about drive times from Killarney to Cashel and Cork. The Limerick area seems central to all we want to do, but looks like it could still take 1.5 10 2 hours to get to the destinations. Thanks for feedback.