Hear something? Sounds like a turbocharger to us.
This much is clear: the all-new 2015 (or 2014.5) Ford Mustang will continue to be offered with the 5.0-liter V8. The 3.7-liter V6 will also likely return, but a new engine, one that we've suspected for some time, will also be on the options list. Yes, it is an EcoBoost four-cylinder. Now, Ford has proven itself capable of building excellent turbo fours, such as the 2.0-liter unit in the Focus ST. Word has it that the new Mustang will have a version of that engine available, although it could have a larger displacement of 2.3-liters.
Nothing's official just yet, but this new spy video that lasts only six seconds, shows a test mule pulling out into traffic. That doesn't sound like neither the V6 nor the V8 under the hood. It's too quiet. Listen carefully and you'll hear the turbocharger kicking in as the driver hits the gas.