The Iso-Marlboro FX3B was a Formula One car used by Frank Williams Racing Cars for the start of the 1973 Formula One Season. The car was a modified version of its predecessor the Politoys FX3 used by the team in 1972. It was renamed to reflect new financial backing by Marlboro and the Italian sports car company Iso Autoveicoli. It was swiftly replaced by the Iso-Marlboro IR after only three races due to regulation changes.
Complete Formula One Results[]
| Complete Formula One Results | |||||||||||||||||||
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| Car | Tyre | Driver | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | Pts. | Pos. |
| 1973 | 
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| FX3B | F |  Nanni Galli
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Ret | 9th | 2[1] | 10th | |||||||||||||
 Howden Ganley
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NC | 7th | 10th | ||||||||||||||||
 Jackie Pretorius
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Ret | ||||||||||||||||||
| Key | |||||
|---|---|---|---|---|---|
| Symbol | Meaning | Symbol | Meaning | ||
| 1st | Winner | Ret | Retired | ||
| 2nd | Podium finish | DSQ | Disqualified | ||
| 3rd | DNQ | Did not qualify | |||
| 5th | Points finish | DNPQ | Did not pre-qualify | ||
| 14th | Non-points finish | TD | Test driver | ||
| Italics | Fastest Lap | DNS | Did not start | ||
| 18th† | Classified finish (retired with >90% race distance) | NC | Non-classified finish (<90% race distance) | ||
| 4thP | Qualified for pole position | [+] More Symbols | |||
References[]
- ↑ All points in 1973 were scored by Iso-Marlboro IR
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