I do not know. But at least since 19. Dezember 1958, the holder (Halter) is ultimately liable (Art. 58 SVG
https://www.admin.ch/opc/de/classifi...dex.html#a58)::)
"If a person is killed or injured or material damage is caused by the operation of a motor vehicle, the holder is liable for the damage.
If a traffic accident is caused by a motor vehicle not in operation, the holder is liable if the injured party proves that the keeper or persons for whom he is responsible are at fault or that a faulty condition of the motor vehicle was the cause.
The holder is also liable, at the judge's discretion, for damage resulting from the providing help after accidents involving his motor vehicle, provided that he is liable for the accident or the help was provided to himself or the occupants of his vehicle.
The holder is responsible for the fault of the vehicle driver and helping assistants as if he were to blame for himself."
and in Art. 59 the follwing exclusion
"The holder is released from liability if he proves that the accident was caused by force majeure or gross negligence on the part of the injured party or a third party without himself or the persons for whom he is responsible being at fault and without a faulty condition of the vehicle having contributed to the accident.
"
"persons for whom he is responsible" means rightful drivers and users of the car .
If there was a change it must have been before 1958.
Because this is such a broad term which put a lot of financiabl liability on the holder, there is the follwing clauses which protects the keeper from financial suicide (Art. 63 https://www.admin.ch/opc/de/classifi...dex.html#a63)::)
"No motor vehicle may be put into public traffic before liability insurance has been taken out in accordance with the following provisions."
The liability insurance does not have to pay if:
- Claims of the keeper for material damage caused by persons for whom he is responsible according to this law;
- Caims for damage to property of the spouse, the registered partner of the holder, his relatives in the ascending and descending line and his siblings living with him in the same household;
- Claims for material damage for which the keeper is not liable according to this law;
- Claims arising from accidents in races for which the insurance provided for in Article 72 exists.