The majority of the automotive industry now relies on competing standards, mainly the C-V2X technology. Developed by the 5G Automotive Association (5GAA), C-V2X is intended to supplement the direct radio connection between vehicles with a mobile radio connection. This would make it possible to significantly expand the application spectrum of automated data communication - without sacrificing the advantage of mobile radio-independent communication with very low latency. The PC5 Sidelink specification allows C-V2X vehicles to exchange data directly with each other. The problem: the C-V2X standard is a moving target, release statuses are being replaced at a rapid pace. There are also regional differences. For example, the Chinese government has already committed itself to the introduction of C-V2X, without, however, being able to specify exact dates and releases.
On the European automotive market, there are already series production models that master vehicle-to-x communication, even though none of them has a market share even close to that of the Volkswagen Golf. Daimler has had a comparable feature for years, starting with its Mercedes E-Class and now also in other models. However, these vehicles communicate indirectly via the mobile network and even use networks as slow as 2G and 3G. It is therefore rather a connection to the cloud; the transmission of really time-critical messages should not be possible. Industry insiders currently describe Daimler's approach as a proprietary, non-standard solution.