ScottG wrote:
I'd be more impressed with a measurable improvement in fuel efficiency. They've all got enough power, now we need better mileage.
You can't make that happen. A vehicle with the frontal area, and weighing the same amount as another will require the same amount of fuel or very close, to travel at the same speed going down the road. The efficiency and savings might be apparent if we looked at 2000 year HP and torque amounts like my 7.3 puts out, and compared a similar HP and torque engine nowadays. The new F150's tow as much as my F350 is rated for, a lighter frame, smaller engine, a specialized truck, unlike the workhorse I have.