[BMK]

My new garage that is being built at the moment has a minimum of 3m floor to ceiling height - 10 feet.

I measured the Cobra and my Ford utility then added about 500mm for the hoist platform and clearance. Then a bit more as I was building the garage from scratch.

I have a friend who has cut the plaster board ceiling out to allow the cars screen to go up into the roof cavity. This picked up nearly 300mm - 1 foot - of extra space. This now looks like a skylight framework.

He had even considered running a 1200mm - 4 foot - skylight to give 250mm extra clearance if needed, but it fitted without that interesting/drastic modification.