dudu-lai people can develop, but there are two problems
1) there is no exact UI for car. For example single climate instead double climate, prius never had rear heating. At this step people selecting other brands/models that not UX that people expect with ordering android devices. It would be good to have some generic car UI that would be possible to select features in settings: i.e. single/double climate, air purge exist/not, ion generator yes/no.
2) protocols are closed people reverse engineering them, most of commands already publicly available. We understand that each canbus maker is hidding it. That's why it would be good to have a way to bypass it and have DUDU generic public protocol then we can send required info. And sometimes even if canbus sends PE/AC info it ignored and not rendered in UI.