Ford's outfitted the Fusion Energi with a dizzying array of driver-assist tech, including a lane-keeping system, adaptive cruise control, driver alert system, active park assist, rear camera, blind-spot indicator system with cross-traffic alert and pull-drift compensation (phew).

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When the system recognises that a lane departure is imminent, it bleeps or flashes to alert the driver.

ECONOMIST: Motoring

Cars on the roads can already park themselves, brake automatically and alert a driver if they are slipping out of a lane.

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