Up-coming in-vehicle API will offer FMSv5 migrated to VSS organized in the Commercial and Fleet Vehicle Expert Group-Community. The cooperation with MAN, VOLVO, FORD, IVECO, DAIMLERTRUCK, DAF, SCANIA in the ACEA taskforces is An overview and panel discussion of COVESA / TF HDEI FMS collaboration to date. • Why it matters? What has been done? What is next? Get an overview from the truck-OEMs and bus OEMs to hot topics like: 1) What is the need for interoperability for truck &busses? 2) What is the reason for the cooperation with COVESA? 3) Why the market profits from standardized interfaces (e.g. SAE J1939)? 4) How this ACEA cooperation extends the scope of the today’s VSS? 5) Is this new truck and bus in-vehicle API an OEM-internal API or open to public?