yep, did it back in August, got this in response:
Thank you for your interest in CarPlay.
We received your request but we are unable to issue the CarPlay entitlement.
CarPlay apps must be designed primarily to provide one of the specified features when operating in CarPlay.
CarPlay apps must also be able to follow the CarPlay App Guidelines and meet the requirements specified in the CarPlay APIs Addendum to the Apple Developer Program License Agreement.
The CarPlay App Guidelines are available in the CarPlay App Programming Guide.