I like insulated coffee mugs
like this one, but none of the ones I have tried fit the BMW cup holders correctly (E92 M3). Either they are too big for the cup holder or too small and they rattle.
For some reason the BMW branded coffee mugs
like this one are not insulated and of no use to me (thermo mug my ass).
Does anybody have a good recommendation for a coffee mug that is both insulated and the right shape for the BMW cup holders?