Germany did not lose the Battle of Britain

[JtD]

If you want to compare today's F1 engines with older technology, you should compare it with older F1 engines, not aircraft engines. Turbocharged these managed up to about 500 hp from 3 litres displacement in 1939, considerably more than contemporary aircraft engines. Naturally aspirated they were at about 50 hp per litre, today were at about 300.