Hello Terry and Fabio,
I only live in Canada during the summer (May to September), so cold weather is not an issue and I drive my Buick Riviera when it rains. Of course, sometimes I'll get caught in an unexpected rain shower, but rarely. Driving to the Rocky Mountains is also on my to do list (8 hours return trip) and the weather is always a gamble in the mountains. 95% of the time, I'm looking at warm summer driving in the city.
I'll do some shopping with your advice and get back to you with a few choices.
personally I think for the your use is better to restrict the choice to following tires:
BridgestoneS001 (NOT available for 18"of 550/575)
Bridgestone RE050A K spec.(K=Ferrari spec.) i had on my old 550 and i was satisfied
Pirelli Pzero Rosso
On my old CLK 240 i had PS2 and i replaced with RE050A and for my taste B was more better than M, i wrote "for my taste" because B have wall more rigid and this done in the steering wheel more feeling, the rubber compound was better, more grip in all conditions....
The negative thing was a little reduction of the confort due to the hard wall, but in complex i liked more the B.
On my old 550 i had B S02 and when i replaced they was not available, replaced by RE050A, both tires was nice for me, S02 little bit more sportive.
On 575 i have 19" RE050A, and this last tires have more grip than their sisters 18" that i had on 550 ... Unfortunately they did oval and i will replace it early ....
I think, as advised by Terry, MPSS are the best for a medium use, personally i wouldprefere B for the rigid wall and his steering feeling, for this reason if Pzero corsa not will be available i would to be consider aleo BS001 ...
but probably my are a ... psicological wall .... ahaha