For those interested I have purchased this European CEE IEC 32A 6h Type 023 IP44 Blue Commando (Caravan Mains) Adapter for Tesla Model S/X/3 Gen 2 – EVSE Adapters 32 amp adapter for the UMC and can confirm that when plugged into the correct 32 amp wall plug (needs to be installed by electrician) it charges at the same rate as the wall charger - around 44km/hour.
Use case: Holiday home.
Use case: Holiday home.