Maidstone & District engineers have converted a Hastings trolleybus to diesel using a Rootes TS3 engine. The trolleybus, a 6 wheel Guy from 1928, had been retired in 1938, but had been stored and restored since and took part in the Coronation celebrations in 1953. Such was the regard in which this bus was held by Hastings people, the unusual diesel engine option was taken after the network was closed in 1959. The bus is known locally as Happy Harold.