hybrid Diesel-electric buses and a fuel containing 20% biodiesel (BD20) would further reduce greenhouse emissions and petroleum consumption. Manufacturers Current manufacturers of Diesel-electric hybrid buses include Alexander Dennis, Azure Dynamics Corporation, Ebus, Eletra (Brazil), New Flyer Industries, Tata (India), Gillig, Motor Coach Industries, Orion Bus Industries, North American Bus Industries, Daimler AG's Mitsubishi Fuso, MAN, Designline, BAE Systems, Volvo Buses, VDL Bus & Coach, Wrightbus, Castrosua, Tata Hispano and many more. Toyota claims to have started with the Coaster Hybrid Bus in 1997 on the Japanese market. Since 1999, Hybrid electric buses with gas turbine generators have been developed by several manufacturers in the US and New Zealand, with the most successful design being the buses made by Designline of New Zealand. The first model went into commercial service in Christchurch since 1999, and later models were sold for daily service in Auckland, Hong Kong, Newcastle upon Tyne and Tokyo. The Whispering Wheel bus is another HEV using in-wheel motors. It was tested in winter 2003–04 in Apeldoorn, The Netherlands. In Japan, Mitsubishi Fuso have developed a Diesel engine hybrid bus using lithium batteries in 2002, and this model has since seen limited service in several Japanese cities. The Blue Ribbon City Hybrid bus was presented by Hino, a Toyota affiliate, in January 2005. For the North American transit bus market, New Flyer Industries, Gillig, North American Bus Industries, and Nova Bus produce hybrid electric buses using components from either BAE Systems (series hybrid, initially branded HybriDrive and now branded Series-E), or Allison Transmission (parallel/series hybrid, branded Hybrid EP or H 40/50 EP). In May 2003 General Motors started to tour with hybrid electric buses developed together with Allison. General Electric introduced its hybrid electric gear shifters on the market in 2005. Several hundreds of those buses have entered into daily operation in the U.S. In 2006, Nova Bus, which had previously marketed the RTS hybrid before that model was discontinued, added a Diesel-electric hybrid option for its LFS series. In the United Kingdom, Wrightbus has introduced a development of the London "Double-Decker", a new interpretation of the traditional red buses that are a feature of the extreme traffic density in London. The Wright Pulsar Gemini HEV bus uses a small Diesel engine with electric storage through a lithium ion battery pack. The use of a 1.9-litre Diesel instead of the typical 7.0-litre engine in a traditional bus demonstrates the