Nigel Mansell entered Monaco in 1992 having won every race that season. Five from five, in a Williams-Renault FW14B that was the most technologically advanced car Formula 1 had yet produced — active suspension, semi-automatic gearbox, traction control, a package so superior to its opposition that the championship was already mathematically likely to end in Mansell's favour long before summer.
Mansell led Monaco, as he had led everywhere. Ayrton Senna in the McLaren-Honda was the one driver consistently quick enough to remain relevant, and at Monaco — where Senna had won four times previously and understood the circuit with an intimacy that felt architectural — the Brazilian had found a way to keep the deficit manageable. When Mansell pitted for fresh tyres during the race, Senna inherited the lead. Mansell emerged from the pit lane behind him.
With perhaps fifteen laps remaining, Mansell began to charge. His Williams on fresh rubber was measurably faster than Senna's McLaren on tyres that had been on the car for thirty laps. The gap came down from several seconds to two seconds, then to one. The grandstands around the circuit were sold out and the watching world assumed the pass was coming. Mansell pulled right up behind Senna through the tunnel, through the chicane, through the swimming pool. He filled Senna's mirrors lap after lap.
The pass never came. Monaco does not provide the space for a faster car to simply drive around a slower one — every corner leads into a wall, every straight is terminated by a hairpin, and the driver in front controls the pace through every section. Senna drove with absolute precision, took exactly the lines that prevented Mansell from finding an opening, and held on. The gap was 0.215 seconds at the flag. Senna's fifth Monaco win. His finest.