Upvoted. I agree that it's annoying and confusing. I don't like it either. But that's the standard that IEEE, ITS and USDOT are supporting and car/truck compani

Upvoted. I agree that it's annoying and confusing. I don't like it either. But that's the standard that IEEE, ITS and USDOT are supporting and car/truck companies are working on that. Unlike WiFi routers, vehicular networking requires everybody to use the same standard in order for it to work. I'm not sure how much space there is to make an effort to build an alternative. They have their reasons for replacing TCP/IP, among which one is to reduce IP overhead in vehicular environment. Since most of time communication is temporary and doesn't require routing, IP layer is not necessary. They want to reduce the IP header overhead for each packet. I doubt how much it improves reliability though, given the fact that people have to implement another whole stack other than just using mature TCP/IP stack.