Johannes Maderthaner
| Team | |
| residence | Biberbach, Austria |
| Occupation | selbständig dellen und hagelreparatur |
| First races | |
| sponsors | |
| sport achievements |
678 Touring Car Open
| Class: | Tourenwagen bis 1600 turbo |
| building year: | 2012 |
| cubic capacity: | 14684ccm |
| Team | |
| residence | Biberbach, Austria |
| Occupation | selbständig dellen und hagelreparatur |
| First races | |
| sponsors | |
| sport achievements |
| Class: | Tourenwagen bis 1600 turbo |
| building year: | 2012 |
| cubic capacity: | 14684ccm |