Sparkling Shiraz was created in 1881 in Victoria, Australia by the Victorian Champagne Company and was originally called "Sparkling Burgundy".
Most Australian Sparkling Shiraz is made with the Charmat Methode (fermented in tank) but you can find a better version: a Méthode Champenoise (Traditional Method) Sparkling Shiraz, bottle fermented on the lees with fine bubbles and a creamy palate.
To recognize the quality look for the higher price and the words "fermented in this bottle".