There's no way to save more fuel than to do it in something that already uses a lot of it. That's what hybrid truck "upfitter" XL aims to do by adding hybrid and even plug-in hybrid systems to Ford ...
XL makes two models: the F-250 Super Duty Hybrid you see here and an F-150 Plug-in Hybrid that we've yet to drive. However, we recently were able to get some seat time overnight in the electrified ...