Phugoid
Word to the wise when chipping the 4, increase the oil change frequency as the "on-board" comp's servicing advice can get tad confused.
These days I doubt I could handle an RS4 at full chat but my A4 does 130 comfortably on the 'bahn past Saarbrucken and it's only a 1.8T Sport.
And yes, I felt safe! In fact I think I would have felt more anxious if I couldn't have kept up with the traffic flow.
Regarding the subject though, I guess speed cameras are a necessary feature on the roads these days with everybody driving around in fast versions of their living rooms. Modern cars can and do tend to isolate you from the road and velocities (and dangers) unless you concentrate fully at all times and actually drive your car rather than just guiding it.
There is, however, a case to be made for "information overload" on UK roads, especially at night. The over abundance of road "furniture" in the form of signs, lights, notices, etc, can be and is distracting.