BnZs, if the 109K4 (November of 1944, FYI) outclassed the P-51s and P-47s I'd mention it. However, having been on the receiving end SO MANY times I've learned it is ... frankly.. owned by the allied rides in squad v squad engagements.
It can barely struggle to get to 30K, and when it does, is instantly bounced by 2x as many P38s, P47D40s, P51Ds, at 35-40K doing 2x or 3x its maximum speed, and in any case where the 109K4 is bounced by an allied plane in superior position (almost always) it has nowhere to go but down.
Guess what? The allied planes excel downhill.
I point out the inequality when it's there.