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Toyota's Talking Cars?

According to Reuters, Toyota Motor Corp plans to sell US vehicles that can communicate with one another using short-range wireless technology by 2021.

By the mid-2020s, Toyota plans to adopt the communications systems across all its vehicles in America and hopes other companies will follow its example.

Talking vehicles have been tried by US carmakers for more 10 years. The technology uses short-range communications to spread data up to 300 meters, including location, direction and speed, to nearby vehicles. The data is transmitted up to 10 times per second to close vehicles and can identify dangers and provide warnings to avoid accidents.