This the is the Sharp Spike: a robotic security strip that can stop vehicles traveling at speeds up to 110km/h. It can be remote controlled from a range of 300 meters. It activates in 2.5 seconds. Its length is adjustable from 2 to 4.2 meters. This robot lasts up to 10 days in standby mode.
More gadgets like this: here
Shark Spike
Sharp Spike can be used as an efficient security system for police forces. The above video shows it in action.
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