About Us

The CAR 2 CAR Communication Consortium is a European industry initiative bringing together stakeholders from across the transport ecosystem to enable interoperable Cooperative Intelligent Transport Systems (C-ITS) deployment.

Its members include vehicle manufacturers, infrastructure equipment manufacturers, suppliers, road operators and research organisations.

The Consortium provides a collaborative framework to support the transition from C-ITS standardisation to interoperable real-world deployment.

Vision: A world of safe, comfortable and efficient mobility using cooperative and resilient transport and traffic systems.

Mission: The CAR 2 CAR Communication Consortium provides specifications, guidelines and best practices to facilitate the realisation of interoperable, innovative mobility services, serving as the landing hub of excellence for V2X.

CAR 2 CAR operates as a bridge between:

• European and international standardisation bodies (e.g. ETSI, CEN, ISO)
• vehicle and system manufacturers
• infrastructure deployment initiatives such as C-ROADS
• European policy and regulatory frameworks

Its role is not to define standalone technologies, but to ensure that independently developed implementations can interoperate in practice.

The Consortium develops and maintains deployment specifications that enable interoperability of C-ITS systems across Europe.

This includes:

• the BSP (Basic System Profile) deployment specification framework
• implementation and interoperability profiles
• security implementation specifications
• test specifications and validation support
• domain-specific profiles for different types of road users and applications

These outputs ensure that C-ITS systems behave consistently across different implementations.

Over time, the CAR 2 CAR Communication Consortium has played a key role in enabling the transition from research and pilot activities to large-scale real-world deployment of interoperable C-ITS in Europe.

Key achievements include:

• development and continuous evolution of the BSP (Basic System Profile) deployment specification framework as a reference for interoperable C-ITS implementation
• establishment of structured implementation and interoperability profiles supporting consistent deployment across manufacturers, systems and countries
• definition of security implementation specifications supporting trusted and privacy-preserving communication in C-ITS environments
• development of test specifications and interoperability validation approaches, including support for large-scale testing and interoperability events
• coordination with European initiatives such as C-ROADS to ensure alignment between vehicle-side and infrastructure-side deployments
• support for the transition from early research and pilot environments towards real-world deployment of Day 1 C-ITS services in Europe

These activities have helped establish a common European basis for interoperable C-ITS deployment and have supported the introduction of cooperative safety and traffic efficiency services on European roads.

Interoperability is at the core of CAR 2 CAR activities.

It ensures that vehicles, infrastructure and other road users can communicate and cooperate seamlessly across manufacturers, borders and operational environments.

This is achieved through a structured approach combining:

• standardisation
• deployment specifications (BSP framework)

testing and validation activities

CAR 2 CAR works in close cooperation with European initiatives such as C-ROADS to ensure alignment between vehicle-side and infrastructure-side specifications.

This coordination is essential for achieving end-to-end interoperability across the entire transport system.

Secure and trusted communication is a fundamental requirement for C-ITS deployment.

CAR 2 CAR supports the definition and coordination of security-related specifications and works within the broader European C-ITS trust framework to ensure secure, privacy-preserving communication between all participants.

CAR 2 CAR contributes to the broader C-ITS vision of a connected and cooperative transport system in which all road users and infrastructure can interact safely, efficiently and reliably.

This contribution is realised through the development of interoperable specifications, coordination with European stakeholders and support for deployment across different environments.

In this way, CAR 2 CAR helps turn the shared vision of safer, more efficient and more sustainable mobility in Europe into practical deployment.

Membership in the CAR 2 CAR Communication Consortium enables stakeholders to:

• contribute to the development of interoperability specifications
• participate in working groups and technical discussions
• gain early insight into evolving deployment specifications
• support interoperability testing and validation activities

contribute to shaping the future of C-ITS deployment in Europe