new tires for my 575M - Pirelli or Michelin?

Excellent about the 456M. What sizes are they if I may ask? Annoying about the 18 inch 575 (and I guess 550?) size, as you say they should be available now. But I suppose old Ferraris aren't a priority for tyre companies. At least we can get MPSSs.

Interesting also that the best high performance tyres come from a country that no longer makes high performance cars (apart from Bugattis, but they are not really French).

 

Still not 295/35 18" MPS4S tires available that I can see. Largest size is 285/35 18".

 

As always, Taz has it right. I put 255/40 on the front and 285/35 on the rear.

 

Should work fine on a 456 or 456M.

 

They feel great!

 

I have the P-zero's on my 550, I hate them. They take forever to warm up to get them sticky. Gentle nudge on the throttle pulling out at the end of my road and I found myself going sideways, temp was about 40dF. They are not worn out... but they are coming off the car. Michelin's or Conti's are going on, I suspect it will be the Michelin's.

 

The MPSS is still a great tire, like Darius said.