Comment by caseyy
I could be wrong, but E90 with the best HiFi package is a very rare exception to the rule. I wouldn’t say you often see such configurations.
It’s cool they did that but it’s almost like they are trying to prove some point — maybe to be the best in the market for FM by a hair. :) One antenna is more common than 3 to my knowledge, by far.
Fair enough, I just happened to have an E92 and one day I read all about its systems when it had some major electrical issues :) (Turned out they were due to someone forgetting to clip a piece of harness back in place after some work, and as a result the harness rubbed against something in a wheel arch, eroding the insulation and letting water in intermittently screwing up the CAN bus!)