Here we go

NCSUPACK09

So are you getting a roadster or a coupe? You said you wanted a roadster, but listed a coupe.

Take a look at the link below and check out what the invoice price is.
2009 / 2010 Nissan 370z invoice Price

Most people are getting at least $500 below invoice, but even at invoice price, 42k OTD is way too high for a coupe.

Just a rough estimate:
$36630 (Invoice price based on model and options listed)
+$750 (Freight)
+$1121 (VA Tax)
+ $600 (Additional Fees)
= $39101 (OTD)

I would tell them no more than 39k OTD and go from there.

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2010 Base 370z Magnetic Black 6MT SP
Mods: Bone Stock