Thank you all for the candid opinions regarding removing the decals - I'm inclined to agree and have been in touch with MMC about some stock decals wich they are awaiting delivery of.

@ PaulV - North Wales did indeed have a reputation for speed enforcement which harks back to the days of an over zealous chief - in truth, I don't think it was any worse than other regions but the police were in no rush to dispel the 'myth' as it was a cheap deterrent.

Here is a picture of the gaps on another car heritage screen - I wondered if they're to equalise negative pressure or something but as no other car seems to have this your explanation sounds more plausible.


[Linked Image]

2017 M3W