[racer_d]

In a recent Autoweek, FERRARI was quoted as looking into the AUDI FSI system as it currently is the superior system. So, it wasn't just Porsche who missed out. Considering how much cost the development of some of these programs carry, it clearly is more economical to wait for someone to perfect the system and copy it, than to create it yourself.

Porsche had a forerunner to DSG called PDK. It was used in the 962 race cars (on a prototype level, not aware of any 962's actually running such a system.) This allowed for a clutchless manual. In the end, it was deemed too expensive to adapt to road car production (ie 1990s Porsche - which was nearly bankrupt).