So given that the Ulez requirement is 0.08 it seems the 3200 GT is under according to Maserati themselves! Seems somewhat wrong that these ULEZ schemes refer to log books rather than the homologation papers.
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Dear Mr. Moore,
thanks for your kind email, you are welcome!
For your information the Exhaust emissions are reported on the original homologation document (COC – Certificate of European Conformity) of your car. In particular, the NOx Emissions are 0,057 g/km.
In case you should need the COC duplicate, please be informed that to order it you should have to contact the official Maserati Dealer you prefer.
They will manage your kind request explaining to you how to proceed.
Very kind regards and have a nice afternoon
Fabio Collina
Fabio Collina
Manager Archivio Storico Maserati S.p.A.
Viale Ciro Menotti, 322″