Anything is possible.
methinks you need to take a deep breath and rethink CA. Its a gimmick. I know people will gush about never owning another car without it. Whatever.
It fails, it is expensive to fix, the keys are expensive. Working on the coding, the CAS system, etc, will be VERY difficult (if you arent a skilled BMW coder.)
Any with the money you save you can pay for the issues that V8 may throw your way!