It is a great _car_, but the whole multimedia portion is totally overloaded with unnecessary, buggy features. Hence "faulty electronics". The car has about 60 ECU's, and almost half of that is multimedia/telematics.
Let's see...
Front: head-unit with radio, DVD, TV-tuner, phone, navi, Linguatronic, Teleaid, intercom, audio gateway, universal mobile phone interface, rear-view camera
Rear: 2x phone, audio-video controller, DVD-changer, CD-changer, TV-tuner, antenna amplifier, microphone array, Bose sound system, two displays in the seats (with remote)
Maybe I forgot something, dunno...
They pushed so hard to release the car according to plan and the testing/bugfixing was just half-way through at the time. It didn't matter.