That just means that the testing needs to be better regulated. I've made cars do some really unbelievable things. I've also driven into the ditch at 10mph because I was typing out a text message. Skill would have to be proven. Anyone who does spend a large quantity of time doubling the speed limit has learned what to expect out of other drivers and that is to never expect anything. I had the misfortune of sliding down the pavement without my motorcycle doing almost 130mph because I didn't expect the road to be covered in mud. These are the risks we take every day.

Like I said, it works on the Autobahn just fine.