Ford is offering Tesla owners a special discount on its F-150 Lightning and Mustang Mach-E.The discount is reportedly called "Tesla Competitive Conquest Bonus Cash."This move comes as Ford reportedly faces challenges in offloading its electric cars. NEW LOOK Sign up to get the inside scoop on today’s biggest stories in markets, tech, and business — delivered daily. Read preview Thanks for signing up! Access your favorite topics in a personalized feed while you're on the go. Email address ...