No, 20k rpm was "the good old days". Now they are limited to 15k.[1] I think the engine manufacturers were the ones pushing for all these rule changes. The rea

No, 20k rpm was "the good old days". Now they are limited to 15k.[1] I think the engine manufacturers were the ones pushing for all these rule changes. The reason is the manufacturers want to be able to utilize this technology in their road cars. Just look at turbos, not too long ago F1 went turbo (again). Not coincidentally many recent road cars are turbo. E.g. Honda has turbos in their econoboxes. [1] https://www.formula1.com/en/championship/inside-f1/rules-regs/Power_Unit_and_ERS.html https://www.formula1.com/en/championship/inside-f1/rules-reg...