The Piedmont Region and Agenzia per la Mobilità Metropolitana (Metro Mobility Agency) have jointly organised a special "Express" bus connecting Turin with the Venaria Reale in about 40 minutes.
Timetables: http://www.gtt.to.it/cms/turismo/venaria-express
Bus "Venaria Express" / Reggia e Parco la Mandria
Tourist services