Perhaps because it's barely being used since new (reg'd 8/07 and only 1700 miles now), some bugs haven't been ironed out.
I'm going to say your problems are in part due to lack of use. I dropped my car back at MMC today for its first service, 1200 miles in 2 months of winter weather.
There is horrendous wind noise coming from drivers door and comparing it to passenger side, it does appear to not sit so flush. Tbh, I can see a little daylight between top of window and roof seals so imagine it's never going to be too quiet. As it stands, the noise is unacceptable.
I had a similar experience with my previous Series 2, the only effective solution I found to the problem was to put the roof down.

Although saying that the Series 4 seems a great improvement.
More immediate concern on arriving home was noticed the coolant light was on. Checked under bonnet for coolant reservoir and no immediate sign. Check manual and no diagram. Check under bonnet again and see a black screw directly under bonnet middle, with seemingly no way to fill with fluid. In addition, I cannot seem to visually check level as the container is black.
IIRC on the Series 2 this was an easy fix, haven't had to on the S4 yet. I had to hose on the washer bottle split, and the only way to repair this was to take the wing off.
P.S. So this is what is like to own a Morgan?!

So I keep being told but its been said on the site before ownership can only be measured in terms of smiles per gallon