I have no idea why I can't figure out the best way to plan our trip next summer so I am asking for some assistance from all of you kind people out there. We have a major trip planned and trying to figure out the best way to do it. We are going from the US to Shannon, then on to Austria, Paris, Normandy and Spain. What would be the best way to travel from Ireland to either Austria (Salzburg) or Paris? We were originally thinking of taking a train but were told that would take way too long for the time we have available. Do you have any suggestions, there are 5 of us traveling together? We are planning on renting a car in Ireland.