Double-Decker Hybrid hits the streets of London The double-decker buses are a national icon of England . Recently hitting the streets, is the new hybrid double-decker . This is the work of designer Thomas Heatherwick in collaboration with specialist bus manufacturer Wrightbus. The newly revamped bus combines a modern form with some inspiration from the 1950?s era Routemasters. In fact, this is the first time in over 50 years that the Transport for London has commissioned a new bus built specially for the city.