Does anyone know if the 285/35R19 and 335/30R20 tires will fit without rubbing on the AMG GTR? I know the AMG GTR and Black Series share rims, so they will obviously fit on the wheels. But are there any differences in terms of arch width between the GTR and Black? To me they look the same. Anyone tried this? Also, anyone tried 295/35R19 fronts?

I have Black Series Michelin Cup 2s on my Pro. I would recommend avoiding the MO A1s unless you are only looking for a few laps to set a local track record.

Yes they fit without issue.

MO1A is the softer of the two options, will get grip a bit quicker if street driving.

MO1 is the harder compound of the two, better for lapping/track days.

Thanks.

I have used soft compound Cup 2 R's on other cars. I find them absolutely pointless. Wear fast with horrible heat cycling abilities.
I was mostly thinking that I just like the look of a bit more rubber, so was essentially looking to go with the PZ4 since they don't offer e regular Cup 2 in this size.
I rarely track road cars as I find that they aren't exactly race cars to put it mildly.