During a test of the Audi Nuvolari, which is essentially a Lamborghini wearing Audi clothes, Mat Watson accidentally exposed his teeth, revealing unusually high concentrations of whiteness for a man in his late 40s.

At his age, coffee, tea stains, cigar-chomping excesses and years of mouthwash overdosing should have left their mark. Surely, those pearly whites should have acquired at least a hint of yellow by now?

Yet his accidental reveal has left the YouTube world shocked by the extraordinary purity of his teeth, which appear to be 100 per cent white.

This has prompted speculation that Mat Watson may be undergoing continuous professional teeth-whitening treatment.

This isn’t newsworthy, of course. Which means I’m perfectly qualified to be a journalist.

LEGAL ADVISORY:

I have absolutely no idea whether Mat Watson is undergoing continuous dental treatment to whiten his upper and lower teeth. Any resemblance to actual dental procedures, whether professionally administered or otherwise, is entirely speculative.

I can not confirm if Mat Watson is in his late 40s,