When it comes to tough, durable buses, Champion wrote the script – and the Defender is the leading player. Defender is the medium-duty bus with heavy-duty performance to provide reliable service under the toughest working conditions. Defender offers the widest chassis selection of any bus in its class - Freightliner, International or General Motors. The choice is yours, depending on your operational requirements and budget. But, the really good news is Defender’s low cost of operation: tailor the chassis to your specific needs for maximum efficiency and minimal maintenance.