What races can you think of that were won, entirely on merit, by a driver who was not in the best car on the day? And by 'on merit', I mean excluding races where the fastest car had a mechanical failure, or the driver crashed, or the winner got lucky with a safety car or anything like that. It has to have been entirely a straight fight in which the slower car won.
For example, the 1961 Monaco Grand Prix, where Stirling Moss defeated the much faster Ferraris just simply by being by far the best driver on the day. I think this is the most obvious example (and Buenos Aires 1958 and Nurburgring 1961 would be two more examples involving Moss), but would be interested to know what others people can come up with, and specifically what was the most recent example in an era where it is more difficult for driver skill to stand out. I can think of quite a few possibilities involving Lewis Hamliton (Bahrain 2021, Mexico 2019, Singapore 2018, Italy 2018) but none are clear cut.