This basilica is not usually part of the route from Upminster to Fürth, at least not since the Brussels orbital motorway was built. It’s a good idea to try the detour in afternoon rush-hour, so there’s time to take a photo. Photos of the King Leopold II tunnel and various immigrant grocery shops are unfortunately missing.
Here is the last food before the Eurotunnel (Folkestone side):
and here the view approaching the tunnel on the Calais side: