Temporary garage.

Looks like an expensive version of this: https://airflow-uk.com/product/car-airchamber/

The one shown in your link appears to be intended for in-garage use, like the airchamber product, though the review from the guy in Cornwall suggests that it can be used outside. This one looks as though it is actually intended as a substitute for a garage https://inthegarage.com/product/ultimate-outdoor-car-cover-outdoor-garage/

 

That’s expensive!!!

As John says; those are more for internal use. That wouldn’t last long outside.

I’ve used something similar https://www.ahspares.co.uk/austin-healey/performance-parts/miscellaneous-2/ventilated-cacoon-indoor.aspx?gclid=cjwkcaiatdgnbhameiwawxgcugrxd-aidjv3fntshedsx4dbdibum5lgjcjojenfeua7bopnbmgf1xocen8qavd_bwe got it cheaper than this; but only pic I can easily find. Used it in a car port that was in a very sheltered spot. It was ok for about a year; then started to suffer.

Personally I’d use something like what John linked or something like this https://www.machinemart.co.uk/p/clarke-cig81015-heavy-duty-instant-garage---da/
with an air chamber inside.

All depends how long you have temporary arrangements for until you build a garage or move to a house with a garage or two

 

I have a couple of those - one 7m. x 3m. and the other 3m. x 3m. - for general storage (not cars). They are well made and easy to erect (a one-man job, and even the larger one took less than 2 hours) and would probably suffice without the airchamber, but you will probably need a groundsheet as well, as they have no "floor".

 

Yeah I wouldn’t put a car cover on it outside. 1) it will likely not let it breath that well and keep it damp, and 2) any movement from wind etc, as you suggest may scratch it.