The FW12C was the further evolution of the FW12 car used in 1988. The FW12 was modified to “C” specification in order to accommodate new V10 Renault engine, which was more bulky and longer than Judd V8 used in FW12. The use of the letter C in the name of the new model implies that there would also be a B variant. Indeed, Williams built an intermediate test mule for the new engine named FW12B, which was not raced. Williams drivers in the 1989 season were Italian Riccardo Patrese, who joined the team in 1988, and Belgian Thierry Boutsen, who signed two-year contract to replace Nigel Mansell. With FW12C the Belgian driver scored his first win at the rain affected Canadian Grand Prix, and at the end of the season, when FW12C was replaced by FW13, won the last round of the season, the Australian Grand Prix. Patrese did not score any victories, but due to lot of podiums finished the season in the 3rd place of the Driver’s Championship while Boutsen was 5th.
| Season | Series | Event |
| 1990 | F1WC | |
| Driver | No. | Entrant |
| Thierry Boutsen | 5 | Canon Williams Team |
| Scale | Manufacturer | Collection |
| 1:43 | Onyx | |
| Cat. No. | Quality | Rarity |
| 025 | 
| 
|
formula143 