cant find any porche 928cp values
I've never heard of a 928 CP or any other Porsche model designated CP, and I have spent a lot of time around Porsches. Do you mean CS? There were only 19 of those built and they were built in 1988 and 1989 only. As far as I know, the only production 928's are as follows: 928, 928 S, 928 S4, 928 CS, 928 SE, 928 GT, 928 GTS. Or are you just using cp as short for coupe? All 928's are coupes.
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