This photo of the Z's underside came across my Facebook feed from the looks of it there's a VIN number attached to the back of the car where the license plate would be!

There were suggestions that the VIN is - JN1BZ4EH5NM300077. That seems to be right to me.

Automotive tire Motor vehicle Asphalt Hood Automotive exterior

Vehicle registration plate Hood Vehicle Motor vehicle Automotive tail & brake light

Sleeve Grey Automotive exterior Bumper Asphalt