monaco_blue
Member
My comment about octane didn't apply to the Z4M but to a car where the requirement is simply for 95 octane...
As for the tyres - if BMW thought XL was required they would have said so - it's as simple as that. The ride of a standard Z4M is harsh enough - why make it harder still?
If you're fitting XL rated tyres on the rear are you fitting them on the front as well? Are you running the same brand and model of tyres on the front as well?
As for the tyres - if BMW thought XL was required they would have said so - it's as simple as that. The ride of a standard Z4M is harsh enough - why make it harder still?
If you're fitting XL rated tyres on the rear are you fitting them on the front as well? Are you running the same brand and model of tyres on the front as well?