Driver Bio
| Nationality | German |
| Birthplace | Grainau, Germany |
| Born | 1 January 1951 |
| First Grand Prix | 1974 Argentine Grand Prix |
| Last Grand Prix | 1979 United States Grand Prix |
| Years Active | 1974 – 79 |
| Current/Last Team | ATS |
Grand Prix Stats
| Race Entries | 81 |
| Race Starts | 74 |
| Did Not Start | 0 |
| Best Race Start | 2nd |
| Best Race Finish | 3rd |
| Retirements | 38 |
| First-Lap Retirements | 4 |
| Not Classified | 3 |
| Disqualified | 0 |
| Did Not Qualify | 7 |
Podiums
| Podiums | 2 |
| First Podium | 1977 German Grand Prix |
| Last Podium | 1977 Austrian Grand Prix |
| 1st Place | 0 |
| 2nd Place | 0 |
| 3rd Place | 2 |
| Most Consecutive Podiums | 2 |
| Most Podiums in a Single Season | 2 |
| Seasons with Podiums | 1 |
Qualifying
| Qualifying Sessions | 81 |
| Reached Q3 | – |
| Q2 Eliminations | – |
| Q1 Eliminations | – |
| Did Not Qualify | 7 |
Points
| Points Scored | 29 |
| Points Finishes | 11 |
| Most Points in a Single Season | 12 |
| Seasons with Points | 5 |
Front Row Starts
| Front Row Starts | 1 |
| Poles | 0 |
| 2nd on Grid | – |
| Most Front Row Starts in a Season | 1 |
| Seasons with Front Row Starts | 1 |
Stats by Season
| Year | Constructor | Entries | Starts | Wins | Podiums | Poles | Fastest Laps | Front Rows | DNF | Best Start | Best Result | Pts Finishes | Points | Championship |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1974 | March | 15 | 14 | 0 | 0 | 0 | 0 | 0 | 9 | 9 | 4 | 1 | 5 | 16th |
| 1975 | March | 14 | 14 | 0 | 0 | 0 | 0 | 0 | 8 | 9 | 8 | 0 | 0 | NC |
| 1976 | March | 16 | 16 | 0 | 0 | 0 | 0 | 0 | 8 | 7 | 4 | 3 | 8 | 13th |
| 1977 | March/Brabham | 15 | 14 | 0 | 2 | 0 | 0 | 1 | 6 | 2 | 3 | 4 | 12 | 11th |
| 1978 | Shadow | 16 | 14 | 0 | 0 | 0 | 0 | 0 | 5 | 13 | 5 | 2 | 2 | 18th |
| 1979 | ATS | 15 | 12 | 0 | 0 | 0 | 0 | 0 | 6 | 12 | 5 | 1 | 2 | 20th |
Stats by Constructor
| Constructor | Years | Entries | Starts | Wins | Podiums | Poles | Fastest Laps | Front Rows | DNF | Best Start | Best Result | Pts Finishes | Points |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| March | 1974–1977 | 45 | 44 | 0 | 0 | 0 | 0 | 0 | 25 | 7 | 4 | 4 | 13 |
| Brabham | 1977 | 15 | 14 | 0 | 2 | 0 | 0 | 1 | 6 | 2 | 3 | 4 | 12 |
| Shadow | 1978 | 16 | 14 | 0 | 0 | 0 | 0 | 0 | 5 | 13 | 5 | 2 | 2 |
| ATS | 1979 | 15 | 12 | 0 | 0 | 0 | 0 | 0 | 6 | 12 | 5 | 1 | 2 |
Teammates & Qualifying Head-to-Head
| Teammate | Years | Races | Qualifying H2H |
|---|---|---|---|
| Howden Ganley | 1974 | 2 | 1-1 |
| Vittorio Brambilla | 1974 | 13 | 4-9 |
| Lella Lombardi | 1975 | 11 | 11-0 |
| Ronnie Peterson | 1976 | 16 | 1-15 |
| John Watson | 1977 | 14 | 0-14 |
| Giorgio Francia | 1977 | 1 | 1-0 |
| Clay Regazzoni | 1978 | 16 | 5-11 |
