Looking at James photos I've realised, for the first time, that the louvres on the Plus 8 are external, in that they are the mirror image of the ones on James S1, so they actively grab air from the outside, bouncing off the windscreen, this photo makes it clear.[Linked Image]

No, the M3W isn't mine, (sob, sob)

Peter,
66, 2016 Porsche Boxster S
No longer driving Tarka, the 2014 Plus 8...