I drove on it for 4 years.
Drove it for 10 years. Saw some of the worst accidents. You had to use your rear mirror a lot especially when passing those Porches would be on your butt in seconds flashing their lights on you a mile away!
Friend of mine who visits Germany often has confirmed that sections of the Autobahn with unlimited speed limits are being reduced more and more every year.
I would like to inform people that I was in an RX-7 that did 128 MPH on Guam. It was all the road was long enough for. We saw blue lights but they gave up. I don’t think it can be done now.