While the heavy camouflage obscures the outside of the convertible much more than our previous shots of the coupe, it's still clear that the same proportions are in place, with a lower, more Fusion-like nose and familiar Mustang profile.
The folding roof appears to be a simple cloth unit, tucking neatly behind the rear seats when not in use. When up, we get a small glimpse of its profile, which largely preserves the coupe's lines.
Also See: Search for a Used Ford MustangIt's the front seat of the cabin where the Convertible's spy shots get most interesting, and most detailed. Using a steering wheel with a familiar deep dish angle and fairly standard steering-wheel-mounted controls, the Mustang cockpit appears to have been updated for a high-res touchscreen infotainment system, a more modern and modular center stack shape, and an entirely new button/switch configuration.
2015 Ford Mustang Convertible spy shots
As for powertrains, the 2015 Ford Mustang Convertible should share its options with the coupe, from the base V-6 engine rated at about 305 horsepower, to the 2.3-liter turbocharged four-cylinder rated at about 310 horsepower, up to the 5.0-liter V-8 good for 420 horsepower. A recent leaked document supports these figures for the next-gen Mustang.
We expect the 2015 Ford Mustang to make its debut in December, followed by a public unveiling at the 2014 Detroit Auto Show in January. It's not yet clear if Ford will show both the coupe and convertible at the same time, or if it will delay the convertible by a few months.