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Autospeed has some excellent articles but the aerodynamic specifications of a 1988 Porsche 911 Carrera 4 aren’t shabby, either:


Porsche 964

- Cd: 0.32

- frontal area: 1.79 m2

- completely flat underbody with undertrays from front to rear


Edit: and I believe just about no lift front or rear with its retractable rear spoiler.


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