Strasbourg and Colmar provide the clearest car-free introduction to Alsace because both are rail-connected and reward walking after arrival. Strasbourg gets the opening two nights for the cathedral, Grande Île, Petite France and a choice between Neustadt or the European quarter. Colmar receives the closing two nights for its smaller historic fabric, covered market and access to the vineyard edge. The fifth day is counted as a departure day rather than a hidden extra night. The itinerary does not claim that the entire Wine Route is effortless by public transport. Villages that look close on a map may require infrequent buses, cycling confidence or a booked excursion. Making that choice explicitly protects the trip from missed connections and lets travellers who prefer cities keep a complete Colmar day instead.