Bellow
Hardcore MB Enthusiast
Pirelli have said on more than a few occasions, especially when facing criticism criticism, that they make what they're asked to. Effectively "Don't blame us, these are what the boss wanted". I don't see this changing with 18 inchers.
Yep, I've heard that a few times too. Often enough for it be believable as true.
Probably the last time Pirelli had any say was some time back when moving to larger diameter rims and lower profile tyres was being debated. Pirelli preferred the balloons as there was more space for its logo.