CarDongle may not be for everyone. If you are content with Android Auto and its limitations, the you may not need CarDongle. There are several limitations that users complain about.
Also, currently there are only mirroring dongles which which don’t have standalone operating system. The mirroring devices also require you install an app on your phone. Basically, it ties up your phone.
We’ll let the community members tell why they were waiting for a device like CarDongle to come around.