It is amazing the misinformation on Wikipedia. This is from the Wiki "Lotus Europa"page.
1972 Lotus Europa Special
Introduced in September 1972, the first 100 Big Valve cars were badged and painted to honour the just-won Team Lotus's 1972 F1 World Championship title with John Player Special as sponsors, all with five-speed gearbox, these were all black with gold pin stripe matching the livery of the GP cars – plus a numbered JPS dash board badge, becoming the first ever John Player Special commemorative motor vehicles. The "Special" name and colour scheme was planned to be dropped after the first 200 cars, reverting to the Twin Cam name, but such was the positive reaction to the new car that the name and pin stripe scheme remained until the end of Europa production although colours other than black were made available.
In the end the numbered plaque distinguished the first, original, 100 JPS cars from other black Europa Specials.
Lou's letter to the dealer clearly disproves this myth I have seen repeated in multiple articles. And Lotus didn't win the Championship until October which is when the formula 1 season ended (just shortly before that letter was sent out to the dealers). If I am not mistaken none of the first 100 Specials were JPS's. Fellow Forum member 2766R, his TCS is still its original Lotus Yellow and mine, 2758R, is still in its original Colorado Orange.