In Hawaii, particularly in Maui, they have been widely criticized by full-time residents and regular visitors as ugly, noisy, disruptive and not in harmony with the rest of the community and the resorts. I would imagine that some would find there presence in a historic city like London to be less than desirable.
London is dirty, smelly, noisy and uncomfortable. DUKWs fit in perfectly. The locals would have it no other way...
In Hawaii, they are also able to access places that were not easily located or accessable by car, such as isolated oceanfront neighborhoods, disrupting the peace of solitude of those who live there. A number of politicians in Hawaii have proposed banning them, but as of my last trip, in summer '04, some were still operating.
In London, the places you cannot access by car usually require a full body suit against hazardous materials. Sometimes the places you can access by car require them, too.
mike
