Remember flt cdr on 360 jacking up his Slough built Citroen ID on the drive of his MQ one Saturday - and as the jack went up, only the centre of the car went with it whilst the wheels stayed on the ground. The sills had rusted through
I understood that the car didn't have a jack, just a prop.
One set the suspension to 'High', placed the prop under the car.
Then set the suspension to 'Low', the car couldn't go down, so the wheel came up.