I want to know the answer to the following question:
When is the car used in the ritual purified?
All the background I'm provided with is that "Tacitus wrote in his Germania: Germania 9.6: Ceterum nec cohibere parietibus deos neque in ullam humani oris speciem adsimulare ex magnitudine caelestium arbitrator – "The Germans, however, do not consider it consistent with the grandeur of celestial beings to confine the gods within walls, or to liken them to the form of any human countenance."". Is that enough to answer the question?
Answer: no