Just search Google, or go to your local drug store. If you got to your local drug store you can sign up for a subscription to a certain magazine, but you need to pay.
Yes. Many of them are bilingual, adept in both German and English. they speak it freely at home and, if they have access, within German communities such as those found in the Barossa Valley, SA.
If you mean which ones you can buy, you can buy a holden, ford, toyota, kia, hyundai, mitsubishi, alfa romeo, saab, bmw, audi, chrysler, vw, volvo, suzuki, renault, peugeot, mazda, nissan, mercedes,...