Extra Championship
SummaryStatisticsTeamsPositionsTeam MatesYear by Year
| Name | John Cardwell |
| Country |  Great Britain |
| Place of Birth | Barton, Cambridgeshire |
| Date of Birth | 20/11/1940 |
| First Race | Sunday Mirror Trophy 19/04/1965 |
| Last Race | International Gold Cup 16/09/1967 |
| Best Qualifying | 16th – (2 times) |
| Best Result | 11th – Sunday Mirror Trophy 19/04/1965 |
| Races | 2 |
| Victories | 0 |
| Poles | 0 |
| Fastest Laps | 0 |
| Podiums | 0 |
| Laps | 79 |
| Laps Led | 0 |
| 11th | 1 Time |
| 12th | 1 Time |
| Season | Team | Team Mate | Best Pos | Points | Wins | Poles | Position | Qualifying | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1965 | Brabham | Bob Anderson | 11 | 15 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 1 |
| Dan Gurney | 11 | 9 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | ||
| Frank Gardner | 11 | 18 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 1 | ||
| Jack Brabham | 11 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | ||
| Jo Bonnier | 11 | 5 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | ||
| Jo Siffert | 11 | 14 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 1 | ||
| Rodney Bloor | 11 | 12 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 1 | ||
| 1967 | Cooper | Harry Stiller | 12 | 10 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 0 |