In future, cars will talk to each others as well

Remember?
You are on a highway, approaching towards the place of an accident that happened just a minute ago. You have no chance but to rush towards the end of the resulting traffic jam and depend on your reaction when the end of the congestion suddenly appears.
You have no chance because you cannot know!
Imagine!
You are on a highway, approaching towards the place of an accident that happened just a minute ago.
This time you know!
Your electronic assistant has already informed you about the impending situation and to slow down the car long before the danger comes into sight. The information has been transmitted to you by oncoming cars and the location of the traffic jam was forwarded from car to car through the traffic in front of you. Hence, an alternative route can be immediately calculated in order to safe you and others from delays and stress.
Your car being able to wirelessly communicate with its environment ensures safety and comfort for you and others while on the road.
Beyond the reduction of traffic risks, many other applications become possible: Imagine e.g. using a ‘drive through check in counter’ at the airport, forwarding travel info or music to your car from your living room PC or receiving a modified itinerary from your company at the petrol station to save time and energy.
In order to improve driving safety, traffic organisation and easy hotspot connections, six European car manufacturers founded the CAR 2 CAR Communication Consortium. Its goal is to create a European industrial standard for future communicating cars spanning all brands.

Technical Approach

The radio system for the CAR 2 CAR Communication is derived from the standard IEEE 802.11, also known as Wireless LAN. As soon as two or more vehicles are in radio communication range, they connect automatically and establish an ad hoc network. As the range of a single Wireless LAN link is limited to a few hundred meters, every vehicle is also router and allows sending messages over multi-hop to farther vehicles. The routing algorithm is based on the position of the vehicles and is able to handle fast changes of the ad hoc network topology.

Mission and Objectives

The mission and the objectives of the CAR 2 CAR Communication Consortium are

• to create and establish an open European industry standard for CAR 2 CAR communication systems based on wireless LAN components and to guarantee European-wide inter-vehicle operability
• to enable the development of active safety applications by specifying, prototyping and demonstrating the CAR 2 CAR system
• to promote the allocation of a royalty free European wide exclusive frequency band for CAR 2 CAR applications
• to push the harmonisation of CAR 2 CAR Communication standards worldwide
• to develop realistic deployment strategies and business models to speed-up the market penetration

Reference : http://www.car-2-car.org


Probably need to look for some car virus guards as the next step ;)