I just got stuck trying to change gear from 3rd to 4th! I read a few threads and I guess this has happened to a few other owners. Gear lever moves forward and backwards and that is it. Kept clutch engaged and pulled over safely from traffic. I assume the Cayman is cable shift and that the linkage has broken or cable has snapped! Just inconvenient and I hope covered under warranty! I had Porsche install the short throw shifter awhile back but that should not make any difference.