Probably the last comments from me: the Amalfi Coast is beautiful, especially with the sun glistening off the brilliant blue Mediterranean Sea. However, even if motorhomes weren't banned (until 10pm) I would advise not driving round it.
"Everyone" says take the bus and go anticlockwise (Sorrento to Salerno via Positano and Minori: we had a hire car and drove clockwise! I heaved one of the biggest sighs of my life when we approached Sorrento. A friend, a renowned petrolhead, took his hire car back after 2 hours, losing almost 3 days fees.
Italian drivers have a reputation for aggressive behaviour and the youngsters on scooters were an absolute menace. The road was narrow in places, with tight bends: at one point a blaring of air horns made me slam on the brakes and a bus hurtled round the corner (virtually on two wheels). By being on the "land" side we also had to cope with door steps protruding into the roadway, with the possibility of someone stepping out of the door. Parking was almost non-existent.
Was it worth seeing? Yes.
Was it worth the stress? Probably not.
Take the bus!
Gordon