Originally Posted by Soliditude
The article doesn't mention having to have an iPhone for Siri to be integrated into the car--that's the whole point! Not all BMW drivers necessarily own Apple products, and that's why Siri will be independently integrated into the car itself rather than you having to have a phone for it.
You can be sure that having an iPhone will be a requirement for using Siri in a BMW. It's not mentioned in our article because it's clearly assumed.