Sales of the Porsche 718 Cayman and 718 Boxster have been on a decline since the two models were introduced back in 2016. This may just be a symptom of the dying sports car market but many Porsche enthusiasts believe the sales slump can be linked to the switch from a naturally aspirated flax-six to a turbocharged flat-four. Despite improving efficiency and performance, many Porsche diehards have noted that the turbocharged engines lack the sound and character of the old naturally aspirated ones.

The Cayman GT4 and Boxster Spyder brought back the flat-six but they are both pretty expensive and fans are left to wonder if that wonderful 4.0-liter engine will be used in future models. Don't let the base wheels fool you because these recent spy shots of a 718 Cayman prototype may prove that Porsche is ready to announce another new model with a naturally aspirated flat-six.