Is 40 miles per gallon (mpg) the new 30? Could this be the de facto standard for a new crop of vigorous, green machines that promise to cart our gracefully aging selves around while taking baby sips of fuel or electrons?
It's that time of year again, when every carmaker lets the car geek reporters (excuse me -- ahem -- automotive journalists) into their proving grounds to play with their latest four-wheeled toys.
Yesterday, Ford began production of what it's calling the EcoBoost engine: a new gasoline motor that employs turbocharging, direct fuel injection, var...