F12 Tyres - Michelin or Pirelli

Totally on the max speed. I wouldn't drive a street car much in excess of 100 MPH on a public road (in the US) and probably not much beyond 120 on a track. Its just not worth it- even though these cars can absolutely fly. You really have to keep your eye on the speed, especially with the F12. It can go from 90-120 in the blink of an eye!

 

Saw the new p zero on the Lusso V8T.

 

All tyre manufacturers say that below 7 degrees centigrade summer tyres seize to operate optimally. Hence, what you are experiencing is normal and I don't believe that a different tyre make will make a big difference.

 

More about FF v F12 than tires

 

Well, officially their respective manufacturers tout both the Trofeo and the Cup as track day tyres:
https://www.pirelli.com/tyres/en-gb/motorsport/all-tyres/products-sheet/pzero-trofeo-r
Michelin Pilot Sport Cup 2 Tyres | Michelin UK

 

They also tout their Corsa as a road and track tyre.

https://www.pirelli.com/tyres/en-ww/car/find-your-tyres/products-sheet/p-zero-corsa#/overview

The thing is that each manufacture does things a little differently. There's several levels of road and track tyres. Some with R compound, some not. Neither the Corsa nor the MPSC2 use an R compound, however the Trofeo R does, and in my opinion, that puts the Trofeo R in a different class. It's also a more aggressive tread than the MPSC2 in terms of dry weather traction vs. wet weather capabilities.

I also think it's interesting that the track focused F12 TdF uses the Corsa like the 458 Speciale uses the MPSC2. Besides this, Ferrari themselves actually suggest using the F12 K2 MPSS on the TdF if one wishes to run a street tyre that performs better in the wet and colder weather. If they thought the MPSS and Corsa were comparable, I can't see why they would make this suggestion.

 

I can tell you the MPSS grip trail off as the ambient temps go from 60F and below. From 60->~48 its a progressive drop off. As the ambient temps go from 48->40F it gets even worse. Summary: performance tires don't like cold temps. Doesn't matter the manufacturer.

I agree DK308 that the TrofeoR is really a super grippy tire but really for the track and only dry roads with warm weather.

 

Completely agree. Both the P Zero and MPSS are not very good below 7*C and pretty useless below 5*C.

 

And that's when you slip on the Michelin Alpin's. FWIW I drove through some hellish weather late last fri night up to/thorough monte bianco ---- these tires are definitely better than the sottozero i previously used....

 

I agree completely and think your equivalancies are correct.

 

Nothing personal, actually about the same time as I got the car (as I remember) Car & Driver came out with a review saying the MPSS were by far the best. I think the MPSS just came out, and I happened to get them on my Cali.

 

MPSS - 1+

 

The TDF uses the new P Zero Corsa 4 I believe which is probably more comparable to the Cup 2 than the old Corsa System.

 

Quite possibly. And in that case, I'd say the old Corsa is comparable to the old MPSC - which is still a notch over the MPSS. The MPSS really did set the bar high and of course that's no fun for Pirelli. That being said, after the MPSS, I still think there's a couple of better offerings before you get to the PZero. Goodyear F1 Assymetric 2/3 and the Conti SC 5/6 are examples.

 

The Conti especially is a poor tyre compared to the Pirellis and Michelins. Too soft and whole chunks fly off under pressure.

 

Haven't seen or heard of anyone who had that happen to them.