Yes, would love to find one but that stuff never gets stocked here (Maine).Probably intials and maybe birthday of somebody on the Mattel team, although both are also genuine British numberplates from c1960, one Surrey, the other Cambridge.
But you didnt show the gold Best of British car - are you still looking for that one?
Yes I do. It could just be a coincidence with initials, but those are genuine UK plates from c1960, all *ER plates originate in Cambridge and all *PC come from Surrey, and always with numbers from 1 to 999, with a choice of white or silver characters of that size on a black background, and fitted like that on the nose of the JagYeah, they were easy to decode. For those that don't know, you replace the numbers with corresponding letters in the alphabet and/or vice versa. The green one spells "classic" 3=c, 12=l, 1=a + "SS", 9=i, 3=c.
SMS, on the new ones, do you mean that the "JPC" and "JER" preceding the manufacturer number refer to the location in England?
Jeremy Cox is the person who designed these 2 Jaguars. Michael Heralda used to do all the designs, but with so many now, they hired a second person to work with him. "JPC" is Jeremy's initials, and "JER" is the first 3 letters of his name. Then obviously the "688" is the Manufacturing number of the model.