Apple CarPlay users who are also WhatsApp users can now consider using the popular messagin app in hands free mode while in a car. WhatsApp users who have updated the app to the latest version on iOS will see the app's icon appear on their CarPlay console.
You can’t browse a list of conversations, but you can tap on the icon to start sending a new message using dictation. Notifications from WhatsApp also appear in the CarPlay UI and users can tap to listen and respond. This makes it safer for passengers sitting in front, or parked drivers, to engage in WhatsApp conversations. Using any sort of messaging app is still a cause of distracted driving and should be avaoided.
Source: 9to5mac