Markus Key
| Team | KEY Enterprises GmbH |
| residence | Grünwald, Germany |
| Occupation | Kaufmann |
| First races | |
| sponsors | |
| sport achievements | Alpen Pokal |
199 Histo Cup Spezialtourenwagen
| Class: | über 5000ccm |
| building year: | 1983 |
| cubic capacity: | 5800ccm |
148 Histo Cup Spezialtourenwagen
| Class: | bis 5000ccm |
| building year: | 1973 |
| cubic capacity: | 5700ccm |
115 Histo Cup Spezialtourenwagen
| Class: | über 5000ccm |
| building year: | 1988 |
| cubic capacity: | 5800ccm |