In my 53 years of Morgan ownership the worst thing that has happened to the car and its contents was the theft of the gearstick knob whilst parked in Shepherds Bush in London.
Morgans tend to attract attention and therefore they are often looked at rather than ignored , so only the most determined thief is going to succeed.
Likewise theft of a whole car is almost unheard of, as the vehicle would be incredibly difficult to dispose of.
Thule do some straps which are both threaded with a wire core , and lockable . This will deter all but the most determined tea leaf.
