We've launched a new Facebook app in which you can win a new Opel Astra. All you need to do is jump online to www.facebook.com/opelaustralia and like the page and join in the fun with the Opel Advent Garage!

You can click through to the Advent Garage through the app on the top bar of the page. The more you share the more chances you have to win - if your friend wins the Astra and you shared the page with them through Facebook - you win a Corsa!