BMW's most powerful engine, the 1986 BMW M12/13/1. A 1.5 litre, turbocharged inline 4 that was said to produce around 1400 HP in qualifying trim. The most powerful engine in F1 history.

Engine swap Competitor!!!!

No replacement for displacement what?

I believe the Honda /Mclaren Driven by Senna produces around 1500 HP. I Might Be Wrong.

If you read about these engines when they were making “1400hp” they practically ate themselves up in a couple of laps if I recall correctly.