someone gave me these. From what I seen they count all the way up into the 100’s.
R6M – Control sales item 13 (New Jersey cost surcharge)
R7A – Control sales item 26 (Special option processing)
R7K – Control sales item 36 (Special option processing)
R8C – Control sales item 53 (National Corvette Museum delivery)
R9G – Control sales item 82 (Corvette World Challenge Car)
R9N – CONTROL SALES ITEM NO. 89 (Processing Code-Paint)
The R9N is on my 2009 CTS4 with Premium Paint and also on my 2012 Sierra Denali with mid-year new paint color (Steel Gray)
