It's not a sleepy village raided by supercars. It's like living in Monaco and complaining about the cars and yachts. The noise and bustle is part of the culture of the area and is overall a insignificant part of global noise pollution.

Live in a dense city and the noise from construction and service vehicles is 100x worse than the occasional sports car.

All those poor people that accidentally decided to spend millions on a flat in Knightsbridge must be so upset because of all the sports cars they totally didn’t know would be there.

I don't think that single example meaningfully contradicts the "rarely" sentiment.

The video says this happens for the duration of the summer, every year. That seems pretty frequent to me.

It does not happen “for the duration of the summer”, it is usually only for a few weeks and in a few locations (which, coincidentally, have a high percentage of Middle Eastern expats.). You do not see Ferraris cruising through Shoreditch and with the exception of one douche who drives a gold Lambo down my road every weekend as he heads off somewhere to show it off I have never seen one of these cars actually being driven. Parked near Harrods or Green Park begging for attention, yes. Driving around? No.

Frequent in that neighborhood, but still very rare in the grand scheme of things. You're missing the forest for the trees.