In which case a helmet may not be enough considering the low rollover bars on the Morgan which are almost more aesthetic than functional. I think that if I had a M3W that I would get a leather flying cap as Steve has suggested for around town and if busy roads and on longer trips, at least a hard cap helmet. Goggles regardless of type of traveling.
Yes, I agree Steven. In reality these are probably all you need...unless...the car goes over...