I have never owned a roadster before always preferring coupes especially on the track. But, as time goes on, I spend less and less time at the track.
In fact, my current 911 TT-S has only been on the track twice...
My 911 is an amazing DD that seems very similar to the Audi R8 in the sense that it is docile around town and an absolute beast when opened up. The 911 TT-S provides, for the lack of a better word, a "clinical" experience interrupted and punctuated by jaw-dropping episodes of excitement, especially when the turbos spool up (which is now almost instantaneously) or a bit of oversteer peeks out. However, the quirkiness of a rear mounted engine in the 911 as been so smoothed out that throttle lift oversteer is a historical anomaly now. I get the sense the R8 provides the same type of experience given the mid engine, German precision feeling. The plusses of the R8, particularly in the Spyder version vs 911 TT cab, is the dramatic flair of the R8. IMHO, the R8 is simply a more visually appealing and beautiful car. The 911 may be a better performer on the track, but I don't think I have the time or skill to extract that difference.
The AM, OTOH, is a novel thing for me. I have never driven an AM and will try one out this weekend. But, I wonder if I can truly appreciate the unique nature of the AM that you write about tooling around the weekend on a cold winter day? We'll see.
Thanks for your thoughts again.