Evolution of Willi Sommer (Race comparison with teammates)
- Results are based on when Willi Sommer and teammate finish the race. (Ordered by date)
- +1 point for Willi Sommer for winning, -1 point for losses against teammate.
Evolution of Willi Sommer (Qualifying comparison with teammates)
- Results are based on when Willi Sommer and teammate have no technical problems in qualifying. (Ordered by date)
- +1 point for Willi Sommer for winning, -1 point for losses against teammate.