Why does Ford no longer make their own engines?

Today’s “Engines” Are Software and Batteries

Open the hood of a modern vehicle and you’ll find more wires than pistons. Ford knows that what really matters now is how well your car’s software runs—not how many valves are in the engine.
With EVs and hybrids taking over, the power unit is increasingly just one piece of a much bigger puzzle. Battery management systems, over-the-air updates, driver-assist tech—this is the new “engine” battlefront.
Ford is investing more in tech talent than in mechanical engineering. That’s where the next performance gains will come from.