They're actually named Michelin Road 5 now, as i just found out.
I could be needing one sooner, rather than later, as i just found a screw in my rear PR4
All i keep reading is how exceptional they are in the wet, but i rode in a blizzard on the way home from work last year, i looked like a snowman when i eventually got home, and the PR4 didn't slip once on the slushy roads, and in rain i have complete grip confidence. So how they've improved that i do not know?
I get that they're not exactly cheap, but in this case you really do get what you pay for, and the peace of mind is worth every penny in my opinion.
NOTE: This is very cheap for this tyre, after having a good look about. Add £15 - £20 for fitting and i'm still quids in. (from OPONEO)