Well I hope thats your opinion only as there are no facts that I can see to be correct.
by the way the MINI was mapped for even poorer grade fuel than 95RON so dont believe everything you read! Was your MINI second hand and someones put a sticker on?
Superunleaded in 2002 was also pretty much 97RON except for Optimax. I'm even suprised
JCW recommended 98RON.