Porsche Spied Testing Mysterious 911 Convertible with Center Mounted Tailpipes

As of now, Porsche's 911-range consists of no less than 16 different models - pretty impressive given the sports nature of the brand's most iconic car. And no, Porsche isn't done yet, with possible additions including the Speedster, GT2, GT3 RS, GTS and perhaps a model the name of which remains unknown – the convertible you see pictured in the following spy shots. Read more »