vehicleMaterials: {
    leather: { hardness: 0; hp: 10; label: "PF1.Materials.Types.leather" };
    metal: { hardness: 10; hp: 20; label: "PF1.Vehicles.Metal" };
    stone: { hardness: 8; hp: 20; label: "PF1.Materials.Types.stone" };
    wood: { hardness: 5; hp: 15; label: "PF1.Materials.Types.wood" };
} = ...