(Bloomberg) -- Ford Motor Co. is slashing prices on the electric version of its best-selling F-150 pickup by as much as 17%, as it moves to fend off new competition coming from Tesla Inc. and General Motors Co.Most Read from BloombergDollar’s Busted Bull Run Has Bears Calling End of an EraSingapore House Speaker Resigns in New Blow to Ruling PartyRussia Derails Danone, Carlsberg Exits by Seizing AssetsRussia Pulls the Plug on Ukraine Grain Export DealYellen Says China Slowdown Risks Spillovers B