Just wait for somebody who will be able to port a 3D BASIC engine. It may happen faster than expected. Of course, that would require the models to be "side-loaded", since the editor doesn't come with a model editor. But in any case: it can happen. It's not because the editor forces you to a 2D engine that you can't fool around and make it 3D.
Even in the worst case, you could try to make a Mode-7 game (Super Mario Kart/Mario Kart:Super Circuit, F-Zero and such back in the GBA/SNES days used those for rendering tracks, and such.)
