these cars cope with hill climbs storms etc stop worrying and enjoy them!
I agree. To be honest I had never considered water ingress a problem until I read this thread. I never use a hose to wash the car; when driving in rain surely engine heat will soon evaporate the water; and if parking overnight or when rain is expected I always try to park slightly nose-up to avoid water running into the bonnet louvres.
Forty-odd years ago I remember using Holts Damp Start on plugs, ignition leads and distributor. Is this still available and could it be a solution for those who are concerned?