Nowdays kids play with license plate numbers in the racing games such as GT, Forza, etc, of course , administration bans those who use political incorrectness or bad words, kids eh?Daniel
Each Airfix VW kit is supplied with a choice of three registration/licence plates. One reads WTW, which is close to the modern abbreviation, WTF.
WTF is short for a popular modern epithet (What The F***?), which I hear regularly when my step-daughter visits, uttered by Mrs Grumpy upon those occasions when an Airfix Beetle arrives by post, and during Mrs Grumpy's unofficial commentary upon modern F1 races broadcast on the (electric!) televisual thing.
Hope this explanation helps.
On the other hand, had a business partner who got a sticker on his 320 clk that readed “NO fat ladies” on the passengers window 😬