Control Unit For A Motor Vehicle, Motor Vehicle, And Method For Operating A Control Unit

A control unit for a motor vehicle, having a system on a chip (with at least one computing unit for providing at least one vehicle function for a vehicle system, with at least one memory unit, and with at least one interface unit, wherein the system on a chip has at least one subsystem, which is logically separate from the components of the system on a chip that implement the at least one vehicle function, for providing at least one motor-vehicle-related additional function that provides a service, wherein the subsystem comprises at least a computing section, an additional function-specific interface section in particular, forming a proxy and an additional-function-specific communications bus that is connected at least to the computing section and to the interface section.