INTERIOR:

AC - AIR CONDITIONING
AM - AM RADIO
AM/FM - AM-FM RADIO
BL - E-BRAKE LIGHT
BS - BUDDY SEAT (67 ONLY)
CK - CONSOLE CLOCK
CS - CONSOLE (67 ONLY)
DN - INSIDE DAY / NIGHT MIRROR
ES - ELECTRIC SEATS (I know of one car with this option)
FL - 4way FLASHERS (66 ONLY)
GL - GLOVE BOX LIGHT
HR - HEAD RESTS (67 ONLY)
PW - POWER WINDOWS

EXTERIOR/MECHANICAL:

BG - BUMPER GUARDS (both back and front)
	FBG - FRONT BUMPER GUARDS ONLY
	RBG - REAR BUMPER GUARDS ONLY
DB - DISC BRAKES
PB - POWER BRAKES
PDB - POWER DISC BRAKES
PM - PASSENGER SIDE MIRROR
PS - POWER STEERING
RM - REMOTE MIRROR (Driver's side)
SG - SURE-GRIP REAR AXLE
TG - TINTED GLASS ALL AROUND
TL - TRUNK LIGHT
TW - TINTED WINDSHIELD ONLY
VT - VINYL TOP (WVT or BVT = black or white vinyl top)