Can anybody tell me what it is like to drive a car in Andorra in the winter? My husband and I will be renting a car (SEAT Ibiza) in Barcelona and would like to drive up to Andorra la Vella ourselves during the last week of December. We heard that the highway N-145 was open all year but is it possible to reach in a normal car without snow chains? I know it's dependent on weather conditions but does anybody have experience up there this time of the year? THANKS!