General Motors option code
MX1 — Automatic transmission
MX1 (Automatic transmission): a General Motors factory option code recorded on 3 models across 1978–1981, with installs and price where a source states them.
3 models · 4 model years · 3 sources
Every sourced appearance
| Year | Model | As named that year | Price | Installs |
|---|---|---|---|---|
| 1978 | Chevrolet Chevy II and Nova | Automatic RPO | $318 | Unknown |
| 1978 | Chevrolet El Camino SS | Automatic transmission RPO | $307 | Unknown |
| 1978 | Pontiac Firebird and Trans Am | 3 Speed Automatic Transmission, Base Firebird and Esprit RPO/UPC | $307 | Unknown |
| 1979 | Chevrolet Chevy II and Nova | Automatic RPO | $335 | Unknown |
| 1979 | Chevrolet El Camino SS | Automatic transmission RPO | $335 | Unknown |
| 1980 | Chevrolet El Camino SS | Automatic transmission RPO | $358 | Unknown |
| 1980 | Pontiac Firebird and Trans Am | Automatic Transmission, Base Firebird and Esprit RPO/UPC | $358 | Unknown |
| 1981 | Chevrolet El Camino SS | Automatic transmission RPO | $349 | Unknown |
| 1981 | Pontiac Firebird and Trans Am | Automatic transmission RPO | $370 | 66,500 Reported |
Every row traces to the source it links from on that model's own year page; this table only collects them in one place.