It always surprised me that gasoline engine manufacturers didn't cut down on the size of the radiator and cooling stuff to save money, and then say "you can only be full throttle for 1 minute at a time, and after that it will reduce to 60%". In a typical car use case, it's very very rare to be at full throttle for over a minute.
They have to have some wiggle room for high ambient air temps that happen in some places, and it’s cheaper to build one car than build a different one for each climate zone. If you go to a high performance driving event at a racetrack on a hot day, you’ll occasionally see cars that overheat.
It can happen if you're going up a long hill or towing something. Probably no car company wants their car to be known as "the car that can't make it up a hill without the radiator boiling over" even if it doesn't actually happen all that often.
