Ford Mustang Mach-E has a mile of wires it doesn't need. That's a big deal

Ford showed this week that it's not going to be as easy for traditional automakers to catch Tesla in the race to build the better electric vehicle, despite what Tesla's doubters think.

"We didn't know that our wiring harness for Mach-E was 1.6 kilometers longer than it needed to be. We didn't know it's 70 pounds heavier and that that's [cost an extra] $300 a battery,"