Harry - all i'd say is mk 1 hood even with good seals you don't want to drive distance on motorways with the hood up.
Aero mk3 -Then you'll get better hood and later engine.
When I had my Series I, chassis No: 134 the first hood was very poor and was immediately replaced by MMC under warranty. The second hood was more than serviceable and whilst there were some slight drips from it, it was more than adequate. One of the hood builders (is that what you call them
) told me that there were about six different iterations of the Series I hood so it depends very much on a) your chassis number and b)whether it has ever been re-built what kind of hood you have on your car.
We did more than 15,000+ miles with ours and found it quite acceptable. Personally, I prefer the earlier Series I hoods as they fold down flatter than the later pram types.
