Have done route from Calais to Les Sables d'Olonnes on Mappy and Michelin and there is a big difference in Toll costs with Mappy being E29.30 and Michelin being E113.81.This seems mainly the A28 stretch which charges E42.80 for what seems like 54 miles.The Mappy site uses the N138 but takes about an hour longer.Has anybody got an inbetween route and cost,about £100 each way seems a lot for tolls,if Mappy is accurate thats £60 an hour.