https://www.youtube.com/watch?v=MlKOrg0zpKY"
He left out one of the key lessons from the 3.5 liter era. The most thermally-efficient cylinder displacement is 300-350 CCs.
Ferrari stuck with the V12 during the 3.5L era because it was only 8 CCs/cyl short of 300. But when FIA reduced displacement to 3000 CCs, their 250 CC jugs wouldn't have been competitive, so they switched to the V-10.
And Enzo rolled over in his grave.
The third season for the 3-liter format, everybody on the grid was running V-10s.
So the most competitive engine you could build also would need to be built around 350 CC cylinders.