"Meanwhile, Ford is revamping its lineup to meet fuel economy challenges without losing performance. According to Dan Kapp, performance had always trumped fuel economy. But "with the extreme focus on improving fuel economy, it still isn't clear to us if with customers' demand for fuel-efficiency, they are willing to trade performance." Enter Ford's new vehicle design philosophy called EcoBoost. EcoBoost's combination of turbocharging and direct fuel injection (injecting gas directly into the combustion chamber rather than into the intake manifold) offers the ability for a "downsizing stair step." Big V8s would be replaced by V6s which would, in turn, be replaced by four-cylinder engines."