The Ouse was very close if you look at my Map in Blog and route to Ouse. Also I believe that a female friend of Claudias, lived in an apartment close to the Ouse then.
There was the River Derwent behind the car park of a well known POI's business premises.
The Derwent flows into the Ouse and the Ouse then goes on to flow into The Humber which enters the sea at Hull.
Do bodies at sea though not risk being washed ashore, if not in Uk but further afield and would this have been a risk to Perp(s) if they wanted all evidence to be destroyed?
The body flowing fromRiver Derwent to York and then Humber had a long way to travel either from Malton area or from York and so could it not lodge before sea or even at York area?
The weather at the time of missing was mild enough for Claudia not to wear a jacket on walk home in March and so unlikely that the rivers, occasionaly famous for being flooding and treacherouse were an issue at this time.
I wondered if putting her in a car and scrapping car was a cleaner way of disposing of any evidence, particularly of car had already been registered as scrapped but was driven on evening for the sole purpose of disposal.
There were many car yards that at this time that were supposed to be highly regulated but received "Temporary" licences to operate.
They would either be a scrap merchant themselves or pass the vehicle to a scrap merchant for processing.
I don't know much about the end of life of a vehicle except that before being scrapped, they have to have all fuel, engine parts and airbags detonated and oil is to be removed and disposed of in an environmentaly friendly way (if there is such a thing)

Normally, a scrap merchant will also remove any car parts and seats etc. that they can re-sell.