Me-109

It's a two minute job. The side of the car is normally in the air with a garage jack so doesn't need and extra lifting. An air wrench will have a set of bolts off and on with no effort. 2 mins max. That works out about £225 per hour. For changing wheels. If the main part of the job is selling and fitting tyres (recognising they do plenty of other stuff too) then those two mins swapping wheels is customer service.

Looks like the air intake snorkel from the bonnet slam panel.

Wow! That must be about £180 or hour for changing wheels. Is that a standard London thing or just Halfrauds?

Cracking effort and well written up.

OP was last here 7 years ago so you aren't likely to get a reply. You could try an IM which they might get an email notification for.