The autobahns in Germany and Austria can be intimidating for those not used to them, and the high speeds allowed on some sections do add an element of danger. The high speeds multiply the effect of any driver error. In fact Austria (in 2009) had a road fatality rate about twice that of Britain, but it was still way below the fatality rate of other (especially eastern) European nations.
Here are a couple of safety advice pieces n using autobaghns
Just drive within your limits and you should be fine. over 8 years ago