The best-ever gathering of WSMs (dubbed Wuzzums) is to take place in Bedfordshire on 29 September.
The meeting will mark 50 years since Douglas Wilson-Spratt unveiled the very first Sprite-based WSM at a Silverstone test day.
Having acquired one of the first three Austin-Healey Sprites off the production line – and enjoyed immediate competition success with it – the Bedfordshire garagiste started drawing a coupé version.
He then bought and modified a Sprinzel Sebring Sprite for the 1962 Monte-Carlo Rally before founding The Healey Centre in London with Jim McManus (the initials of Wilson Spratt McManus giving the cars their name) and built an ally-bodied Sprite for works foreman Peter Jackson.
That car just pre-dated the 'proper' Wuzzums. They were built by Peel Coachworks, looked (coincidentally claimed Wilson-Spratt) like a baby Ferrari GTO and sold 11 units over four years, no two quite the same.
The Spridget-based WSMs were not the company's only output, however, and there were several one-offs based on Healey 3000, MG 1100 and even an extremely elegant XK150 estate (not to be confused with the Morris Traveller merged Foxbat).