"Buick Trademark(s) used with the written permission of General Motors"
| CODE | ITEM | SKYLARK | 70 SERIES | 50 SERIES | 60 SERIES | 40 SERIES |
| A | Dynaflow transmission with quadrant light | S | S | EC | EC | EC |
| B | Heater and Defroster | S | EC | EC | EC | EC |
| D | Sonomatic radio, manual antenna | - | EC | EC | EC | EC |
| O | Sonomatic radio, electric antenna | - | EC | EC | EC | EC |
| E | Selectronic radio, manual antenna | - | EC | EC | EC | EC |
| P | Selectronic radio, electric antenna | S | EC | EC | EC | EC |
| H | Flexible Spoke Steering Wheel | S | S | S | S | EC |
| K | Foamtex seat cushions | S | S | S | S | EC |
| M | 40 series accessory group "M" (includes trunk light, electric clock, rear license plate frame, wheel covers) |
- | - | - | - | EC |
| M | Wheel Covers | - | S | EC | EC | † |
| F | Safety Group (includes back-up lights, windshield washer, glare-proof mirror, and parking brake signal) |
S | S | EC | EC | EC |
| G | Windshield washer | S | S | EC | EC | EC |
| - | Glare-proof mirror | S | S | EC | EC | EC |
| - | Two-tone paint | - | * | EC | EC | EC |
| - | Two-tone paint | - | * | EC | EC | EC |
| I | Easy-Eye Glass | S | EC | EC | EC | EC |
| C | Safety Power Steering (Dynaflow only) | S | S | EC | EC | EC |
| - | Custon Trim | S | EC | EC | EC | EC |
| L | Power Brakes (Dynaflow only) | S | EC | EC | EC | EC |
| N | Air Conditioner (available on Models 41D, 61, 52, 56R, 72R, and 76R) |
- | EC | EC | EC | EC |
| T | Wire Wheels | S | EC | EC | EC | N |
| S | 4-Way front seat adjustment | S | EC | EC | N | N |
| - | Electric window lifts, standard 4 windows, 76R and 76C. Optional, 4 windows, or 2 windows, 52 and 72R. Optional, 2 windows 56R, 56C and all 60 and 40 series models, except 48D |
S | EC | EC | EC | EC |
| Q | White Wall Tires | S | EC | EC | EC | EC |