Tom, you got just about all of them.
Tail Lights -- Euro specs call for a turn signal a different color from the brake lights. This is done by having an amber colored oval insert in the lower part of the outside tail light on each side. Also, since European license plates are wider than US the reverse lights are handled in the same manner only this time they are in the inside of each pair. There is also a pair of rear foglights mounted below the tail lights just about even with the bottom of the license opening
Side Marker Lights -- Euro Vettes have side marker lights on the front and rear quarter panels. They are amber instead of red.
Euro Spec Tires -- The Euro vettes are equipped with the same tires as the US models.
Glass -- Don't know but it is likely the same glass that is in the US models. Older Euro cars used to have different glass but Euro safety standards are pretty close to US standards these days.
Head Lights -- The US cars have dual-beam headlights. the Euro cars have single-beam headlights.
Speedometer -- The US delivery cars have a speedometer that reads to 200 since our default is MPH. Euro and Canadian delivery cars have a speedo that reads to 300 due to the KPH (metric) default.
Guages -- The oil pressure and coolant temp guages for the Euro and Canadian cars will be in metric units, kilopascals and celsius respectively. In the US cars they are in lbs and Farenheit.
Radio -- The US channel spacing defaults on the radio are 1000kHz in the AM band and .2mHz (on the odd tenths) in the FM band. The Euro spacings are 900kHz in the AM band and .05mHz in the FM band. There is no way to switch the US radio to the European spacings. I have tried on mine. You can get lucky with some FM stations that happen to be on the odd tenths such as 93.3 for RTL radio near me but most stations will not come in without at least some static since they are not usually on the odd tenths in the FM.
Last but not least -- The Z06 is not available in the European market.