Great for you guys but it is not just Italy. This sort of taxation in one form or another is in existance in many parts of Europe. It is seen as a way of extracting more tax out of the wealthy.
The biggest market for Morgan V8's is actually Germany and not UK which is the second largest market. The Aero/Plus 8 is a niche market for now, and whilst these markets still exist markets like Italy and even the USA don't make commercial sense .
Realistically how many owners actually use all that power. Hands up who has actually taken it to 170 mph or even taken it to the red line on more than a couple of occasions. It is not the absolute power that counts in the real world, it is the torque at low to mid range for acceleration and overtaking.
Don't really disagree with much of your reasoning, but if you carry it through to its logical conclusion, why did you buy a Plus 4 rather than a 4/4? Maybe because it is easier to have an excess of power for the job in hand rather than trying to row along an under-powered car for touring at say French speed limits (130 kph). Incidentally, no Aero model will do 170 mph, I have maxed several of them at Bruntingthorpe and the AeroMax was the fastest at 165 mph, the Aero SS was much slower at circa 155 mph. In both cases the limit was aerodynamically limited.
Enjoy your V8s while you can.
We will, which was the point of our previous post, I have just ordered a new Mog.