Does anyone know of a listing that breaks out the S-codes on the underhood data plate? My '71 142 has the following numbers stamped after the "S-" (last line of the plate):

5478.5728

The numbers are stamped exactly as typed... 4 digits followed by a period, followed by 4 more digits.

Similarly, my '73 1800ES has the following code(s):

6078.6107

I've found many data plate breakouts/explanations on the internet, and all of them mention the fact that the "S-" codes denote special equipment installed at the factory. But none of them have any listings as to what any of the numbers mean.

Just curious...

Gary L
--
1971 142E ITB racer, 1973 1800ES, 2002 S60 T5