Yes the Eagle F1 GS-D3 is a great summer performance tyre and you pay for all that development work, although not all Eagle F1's are as good as each other in the dry right?
Dry performance has increased with each new generation of the Eagle F1, as you'd expect.
Good Year F1 All Season for example surpasses the F1 GS-D3 in certain conditions right? So it is impossible the 912 does the same compared to the 452 right? No Wrong!
They don't even sell the All Season over here do they? It's main benefit over the GS-D3 is in stuff like snow where the GS-D3's tread pattern and compound renders them worse than useless rather than just 'bad'. In non wintery conditions, the F1 GS-D3 is just.. a better tyre, wet or dry.
So yea, its entirely possible the same difference exists between 912 and 452

The F1 GS-D3 is a great grippy tyre, shame they don't make it in 255/35/18 though
They used to, its an old tyre now, it's simply been replaced by a newer, better version of the Eagle F1 called the Assymetric. GS-D3 is now only available in sizes where they dont produce an Assymetric.
The thing I fail to understand is why you find it so dificult to admit that the 912 could be better than the 452 in some circumstances
Because generally speaking, it isn't. There might be isolated cases where it is, perhaps snow, I dunno, but not generally.
you defy all logic making a claim otherwise, however, it is clearly a point you need to make even though you can back it up with no personal experience.
Whereas obviously you've driven a 330i on 912's over 12 months then 452's over 12 months... oh wait no, you've got similar comparable experience then
