An interesting use case, an off-road 911.
en.wikipedia.org/wiki/Porsche_Panamericana
Quote:
It featured a removable waterproof fabric top that could be attached by a pink zipper. Various roof configurations were possible and the car was in fact a hybrid of a targa, convertible, coupe and off-roader.[3]
.... In spite of its un-streamlined wheels, its aerodynamic drag coefficient was only 0.30.
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It's a [double-]bubble top coupe and a Targa
The air intakes gobble up the roof edge vortexes.
The 0.30 Cd probably comes from the deeper windshield, slant chopped roof and the (Tropfenwagen?/300SL?)-style fenders over the radiused wheelwell edges.
Youtube video here