its not the 29 thats for sure.
- On the 29 the roll hoop from the side is different: The space underneath extends further back - here this gap is tiny. There is only a single support too.
- The housing space along the side of the tub looks different
- The fuel flap area shape is totally different
If anything, the last one gives it away that it is an old car because of the head protection area is missing (the shape difference). Looks a bit like the 20?
Fuel cap is just after Pedro
Also note the tub curve above the end of siemens. Looks the same housing space.