Share your experience!
With my Sony Xperia P I could connect via SAP or rSAP to my car.
Now I have Android 4.3 on Sony Xperia Z1 compact I cannot connect. Only as headset it works.
I agree 100%!
This morning, I don't know exactly why and how, for the first tima my car bluetooth downloaded my phone address book. I don't know if it is connected to the message regarding google services (I don't remember if is about an update) i received when I switched on my phone, but, now it works!