Terrain Spline for Pathfinding

Hello All,

When learning how to set up roads for my (vehicle based) game I see that the documentation points to using terrain spline tool, but a lot of videos I have seen demonstrate using a custom Blueprint for creating roads using the Spline component.

What I want to know is, what are the pros/cons for each method? Can I use path finding if I use the terrain spline tool or is solely meant for static meshes?

Thanks,

Nick