While searching online about the PS1, and polygons. I came accross this image:
2097 Hybrid.jpg

As you can see, depicted is a Wip3out style Piranha, on Manor Top.
But also, the thrust trail appears the same as it does in 2097, as well as the plasma bolt (in the bottom right).

I own both Wip3out and Wipeout 3 SE. But neither of these games use this style of thrust trail, or plasma bolt.
I also remember seeing a picture of a goteki 45, with a teal coloured thrust trail, similar to the style of this picture (but this was more than 8 years ago, most likely long lost on the internet).

Can anyone tell me if this picture is perhaps an early game test screen shot, or perhaps a modified version of the game that might have once existed?