After checking the net and also after finding this on the body.

I decided to let it be a GTX 69-ish instead.
I also decided to to some different with the tail lights to make them look a bit more like the 69 tail lights.

I just need to clean things up a bit. Then my idea is to paint the entire tail light area with chrome, let that dry and then paint with clear read and probably black between the rims.

The underside is finished with wheels in place and all. Note to self – glue the rims in the tires first, before trying to put them on the axels.

I also decided to paint paint black on the wheels.

Once the tail lights are sorted, I can put a new cote of primer on.