{
  "source_groups": 26,
  "positive_valid_solids": 102,
  "new_groups": 4,
  "new_positive_solids": 13,
  "original_mesh_records_held_exactly": 22,
  "native_retained_sources_match_untouched_STEP_reexport_control": true,
  "roundtrip_volume_differences": {},
  "native_mesh_bounds_agree": true,
  "complete_aperture_witnesses": 537,
  "adjacent_web_material_witness": true,
  "six_tab_bores_and_adjacent_material_witnesses": true,
  "source_groups_classified_exactly_once": true,
  "internal_pairs": 6,
  "positive_internal_source_contacts_mm3": {},
  "sampled_retained_neighbors": 229,
  "sampled_retained_neighbor_pairs": 916,
  "positive_retained_neighbor_contacts_mm3": {
    "intake_grille_flat_diamond_aperture_web_comparison__front_bumper_rear_open_moulding_retained_outer_envelope": 1649.421164,
    "intake_grille_flat_diamond_aperture_web_comparison__front_bumper_connected_open_armature_with_joint_passages": 522.609354,
    "intake_grille_flat_diamond_aperture_web_comparison__front_bumper_pair_bored_clamping_plates": 664.276783,
    "intake_grille_flat_diamond_aperture_web_comparison__front_bumper_pair_unloaded_folded_inner_spring_comparisons": 117.826069,
    "intake_grille_flat_diamond_aperture_web_comparison__front-signal-reference/front_landing_panel_with_estimated_rear_tongue": 331.116783,
    "intake_grille_two_formed_edge_rails_comparison__front_bumper_pair_unloaded_folded_inner_spring_comparisons": 252.722125,
    "intake_grille_two_formed_edge_rails_comparison__front-signal-reference/front_landing_panel_with_estimated_rear_tongue": 1432.56,
    "intake_grille_four_upper_unthreaded_fixing_cues_comparison__front-signal-reference/front_landing_panel_with_estimated_rear_tongue": 65.973446
  },
  "engine_sources_translation_body_mm": [
    0.0,
    555.2,
    715.9000000000001
  ],
  "limits": "Factory/replacement comparison, not fitted CHA478 identification. The existing owner views do not resolve this grille construction, dimensions, mesh pitch or mounting map. Factory PDF263 lists CHA478 and four AB608041 grille-to-bonnet-locking-platform screws. Its illustration includes lower tab roles; the supplier Rimmer CHA478 photo shows flat diamond strands and formed edge strips/tongues. MGOC calls its current CHA478 replacement hex mesh and its downloadable catalog lists six GHF423 screws to landing panel/valance, not the same four-platform-only count. Those replacement/factory scopes stay distinct; no fitted six-screw map is asserted. The native comparison replaces browser crossing round rods with one planar perforated web;it does not reconstruct expanded-strand twist, forming, welding or exact manufacturing ownership. Original 795.8667 \u00d7 245.5333 mm browser panel reference rectangle, center Y592.6667 mm, plane Z1532.4667 mm and four upper X stations stay. The former round rods/frame extend beyond that centerline rectangle by their radii; new flat-web bounds use the declared rectangle,not an unchanged full-material envelope. 1.2 mm sheet/rail/tab sections, 40 mm horizontal/8 mm staggered-row pitches, 36 \u00d7 14 mm diamond openings, 1 mm perimeter web, 8 mm face/9.4 mm return rails,tab lengths and two lower X stations are construction estimates. New upper/lower foot heights, 20 mm rear bore offset, 5 mm bores, 4 mm unthreaded shanks/8 mm heads/12 mm stem lengths and 2.5 mm head heights are estimates,not catalog screw dimensions or a fitted drill/tool map. Four upper screw cues retain the factory-platform count;two lower holes remain without invented fixings or receiving body holes. Rails/tabs are assembly-role boundaries,not a verified detachable component list. No body, bumper, lamp, radiator, fan, lock or horn geometry moves or resizes to manufacture attachment. Mesh/edge/body contacts and gaps remain source-model results; no fitted clearance, airflow, cooling performance, strength, road condition or replacement/removal procedure follows. Display separation remains illustrative."
}