MediaCorp Subaru Impreza WRX Challenge has been held since its inauguration at the open air space in front of a shopping and commercial centre that was offically opened in what year?
MediaCorp Subaru Impreza WRX Challenge: MediaCorp Subaru Impreza WRX Challenge (Chinese: 比耐力赢轿车比赛) is an annual challenge organised by MediaCorp Radio and Subaru in Singapore. MediaCorp Subaru Impreza WRX Challenge:  It has been held at the open air space in front of Ngee Ann City since its inauguration in (31 October) 2002. Ngee Ann City:  The S$520 million building was officially opened on 21 September 1993 by then Prime Minister, Goh Chok Tong.
i don't know