Lance Whitney/ZDNET Follow ZDNET: Add us as a preferred source on Google. Siri typically serves as my voice assistant when I'm driving and my iPhone is connected via Apple CarPlay. And that's fine for interactive tasks such as playing music, getting driving directions, setting a reminder, and calling or texting someone. But Siri often stumbles with more complex or challenging questions, the type that you'd usually ask an AI. With Apple's new CarPlay support for third-party voice assistants, you're able to talk directly and hands-free with popular AI apps. So far, you can chat by voice in the car with ChatGPT and Perplexity AI just as you would at home or elsewhere. That means you can ask them questions, make requests, and engage in back-and-forth conversations. Also: Google Maps vs. Waze: I compared the two best navigation apps, and this one's better There is one barrier here. The ChatGPT voice assistant works with CarPlay , no matter your account type -- free, Go, Plus, or Pro.…