On balance given that any 30 month plus 3 months will expire before the end of the year as regards my CX the better course for me is not to accede to the terms of the 30 month Warranty which you say i and other CX owners are entitled to.
I will take my chance
Three main reasons 1.I do not know the terms of the 30 month warranty sent to you and such terms may be less favourable than the terms enforceable in respect of my car at the present time under my present warranty;
2.The terms apparently enable MMC to take advantage of a specific time limit which is unlikely to be the position under the terms of or referred to in my 2021 Manual;
3.I am with respect at a loss to understand why you have not copied the emails from MMC (with personal details omitted if thought fit) into this thread so all may consider them.
I readily appreciate that others will disagree with me as to most appropriate course in the circumstances.