Unless I've missed any, I think this is the nearest we've had so far. Would love to see some comparison shots of the two together, under the same lighting conditions, etc
Here are some good closeup pics of the 2015 Mustang shown at PRI this past week (it was either the Ecoboost or the V6 shown). You can see the underside including the IRS and other details I haven't seen in other pics.
Washington DC Autoshow has the red ecoboost coupe. Looked awesome but the blue lights surrounding the booth just pounded the red paint making for some tough photos.
This car truly is very beautiful in person. The body lines, along with the fastback design and the rear that just sets it all off. I recommend going to see this car in person, look for an auto show near you.