| Year | Cutting Style | Ignitions Key | Ignition Keys notes | Door & Trunk keys | Model Notes |
| 1978 | Double Sided | X121 / DC3 | Chipless | || | || |
| 1979 | Double Sided | X121 / DC3 | Chipless | || | || |
| 1980 | Double Sided | X121 / DC3 | Chipless | || | || |
| 1981 | Double Sided | X121 / DC3 | Chipless | || | || |
| 1982 | Double Sided | X121 / DC3 | Chipless | || | || |
| 1983 | Double Sided | X121 / DC3 | Chipless | || | || |
| 1984 | Double Sided | X121 / DC3 | Chipless | || | || |
| 1985 | Double Sided | X121 / DC3 | Chipless | || | || |
| 1986 | Double Sided | X121 / DC3 | Chipless | || | || |
| 1987 | Double Sided | X121 / DC3 | Chipless | || | || |
| 1988 | Double Sided | X121 / DC3 | Chipless | || | || |
| 1989 | Double Sided | X121 / DC3 | Chipless | || | || |