London Mayor Boris Johnson unveiled new diesel-hybrid electric double-decker buses this week that are scheduled to hit London streets in 2012.
The new hybrid buses will get 10 miles per gallon which is almost 40 percent more efficient than a conventional diesel double-decker bus. London already has some diesel-hybrid buses in its fleet, but these newer models will be 15 percent more efficient than those.
"Over the next few months its mettle will be well and truly tested. But I hope that process will confirm we have built a real eco-warrior of a bus that can contribute to improving … Read more