Yeah, I think I will do both normal and cup versions, the cup version only differs visually in the added spoiler and roof intake, the removed front daytime running lights and the interior being almost entirely stripped, as far as I know. The road version will certainly be based on the TCe 140bhp engine of pre-2023 though, as after that it's either 90bhp or hybrid.
Back to Blender, I ended up purchasing the blueprint I was using for reference, instead of using just the low-resolution preview, so I'm revisiting the entire thing to fix the shapes that were sometimes off quite a bit. I'm also using this as an opportunity to model cars in more detail, not just for LFS, so I'm going for a high resolution model, from which I will make the LFS geometry.
The screenshots show the overall shape of the car, it's now a single mesh with much cleaner topology, but I'm still missing some of the front bumper and door details, and still fixing the trunk and rear fender shapes around the tail lights and the C pillar. And of course, I'm now extending the mesh over the lights and will have to cut them out properly.
Once I'm done with this overall mesh, I will start making the various panels again - I've made the hood already (quick and dirty test), just because it looks so different with the guide mesh extending toward the front grill. I'll probably try to make a low-poly version of the hood pretty soon, to get an idea of how many triangles I can get away with.