I haven't purchased the new iphone yet b/c I've been waiting to see if you can use Siri with your car bluetooth. I'd like to be able to have Siri read emails/texts over the car bluetooth speakers and dictate emails/texts using the car's bluetooth mic. I have a new VW with the most recent bluetooth technology so I'm hoping the answer is yes.
I have a BOSS radio that has built-in Bluetooth and I was doing it earlier today and Siri's voice was coming out of the car speakers. I was also able to ask her questions but I still had to touch the mic on the phone first. Hope this helps.