I was not charmed by the original angular Go-Bot-looking Z31s, but the smoother post-facelift '87-'89 models were tight.
I talked to the driver of this one. It's an '88 and he just bought it a couple weeks ago from the original owner. It's got 168k miles on the clock and has obviously been well-loved, especially considering it's evaded the ravages of road salt.
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