Yes Jon, that's what these boys said as per dealers advise..
So, as I see it a WET system that becomes hydraulically locked by it's OE design...and blows things apart...

I'll go with that but surely this should have been remedied during the road testing period, I find it hard to believe MMC were not fully aware of these problems prior to releasing the cars to the public - again

The times I have counted my blessings by staying with the Plus 8 and not changed to a Plus Four you wouldn't believe.
My good lady suggested I got a new car last year bless her and I did a lot of homework but the sound track of the V8 faulty radiators and uncomfortable seats killed it off big time for me. To me both these faults had nothing whatsoever to do with it being a hand built car, just poor development prior to release.