Are Michelin Pilot Primacy directional?

[rockandrollmark]

Just had four fitted to my Merc and they look just like those fitted above.

Can't comment on grip yet, as they're not really 'scrubbed in' yet, but seem okay. I will say, however, that road noise levels are much lower than that of the P6000s they replaced, and they are a lot less crashy over the numerous potholes blighting our roads lately

just to add, I quite liked the P6000s and found grip levels to be pretty good in all weather, contrary other's experiences