-reversetest holds negative throttle; forward throttle drives -224.9 km/h and reverse throttle -99.5 km/h, both backward, so the throttle sign is not the cause - the wheel spin is inverted relative to the engine torque. Mesh orientation is fine (nose +X). Next: check the imported wheel-bone reference pose (axle may land on X/Z, not Y).
Game
The Unreal project lives at Game/GigLine/GigLine.uproject once created. Nothing here yet.
What gets committed
Config/— engine and project settings, including the quality presets used for release checksSource/— C++ modulesContent/—0.1.0map, materials, meshes; LFS-trackedGigLine.uproject
What does not
Binaries/, Intermediate/, Saved/, DerivedDataCache/ — all generated. .gitignore covers them; do not add exceptions.
Engine
Installed outside the repository. Its path and exact version are recorded in ../Docs/toolchain.md. Nothing in this directory may assume a machine-specific engine path; the documented build procedure is ../Docs/build.md.