The examples being lets say BMW E46 M3 and the new BMW G80 M3. The E46 has a 3.2 i6 NA that makes 338hp, the G80 M3 has a 3.0 i6 twin turbo that makes 510hp.
What technological advancements have been made, other than the turbos and 20 years, that separate these 2 cars?
If you know something really technical feel free to share.
To this day it still impresses me that BMW made a production 3.2l 6 cylinder in 2001 that made 333-343hp especially compared to other production naturally aspirated 6 cylinders at the time. I do realize that if the E46 M3 would have come out today it would probably be SAE rated at around 310-320hp but its still impressive for a stock 3.2l engine.