Here's the most detailed description that I found in a quick search:
BMW Plug-in hybrid 330e technical drive train details
It doesn't detail the transmission itself, because it is a normal ZF HP8, except that instead of a torque converter it has a mechanical clutch (called a "decoupler" in the article, and located inside the rotor) and the hybrid system motor.
Of course that doesn't help Andrew with the specs that he needs.
BMW Plug-in hybrid 330e technical drive train details
It doesn't detail the transmission itself, because it is a normal ZF HP8, except that instead of a torque converter it has a mechanical clutch (called a "decoupler" in the article, and located inside the rotor) and the hybrid system motor.
Of course that doesn't help Andrew with the specs that he needs.