electric warning sounds
... that electric drive cars are so quiet at slow speeds that they pose a safety hazard for pedestrians, and will be equipped with electric warning sounds?
... that <a href="./Electric_vehicle" id="mwFTU" rel="mw:WikiLink" title="Electric vehicle">electric drive cars</a> are so quiet at slow speeds that they pose a safety hazard for pedestrians, and will be equipped with <b id="mwFTY"><a href="./Electric_vehicle_warning_sounds" id="mwFTc" rel="mw:WikiLink" title="Electric vehicle warning sounds">electric warning sounds</a></b>?