 Complete the following phrase:  The 2011 season began on 11 February at the Yas Marina Circuit in Abu Dhabi and ended on 4 December at the Homebush Street Circuit. It featured the fifteenth V8 Supercar Championship, consisting of 26 races at 14 events covering all six states and the Northern Territory of Australia as well as events in the United Arab Emirates and New Zealand. There was also a stand-alone non-championship event supporting the 