{
  "source": "Carsbuyer",
  "source_url": "https://carsbuyer.org/fr/diesel-ou-essence/seat-leon",
  "licence": "Citation autorisée avec mention de la source Carsbuyer et de la date.",
  "measured": "asking_price",
  "measured_note": "Prix DEMANDÉS dans les annonces actives sur AutoScout24, pas des prix de vente conclus.",
  "compares": "fuel_type",
  "method": "log(prix) ~ âge + log(kilométrage) + côté + âge×côté, moindres carrés sur les annonces actives",
  "collected_until": "2026-09-28",
  "updated_at": "2026-09-28T09:33:07Z",
  "market": "FR",
  "currency": "EUR",
  "language": "fr",
  "brand": "Seat",
  "model": "Leon",
  "slug": "seat-leon",
  "model_years": {
    "from": 2011,
    "to": 2026
  },
  "diesel": {
    "sample_size": 82,
    "annual_depreciation_rate": 0.088,
    "median_asking_eur": 40859,
    "median_mileage_km": 10
  },
  "gasoline": {
    "sample_size": 30,
    "annual_depreciation_rate": 0.045,
    "median_asking_eur": 18446,
    "median_mileage_km": 69678
  },
  "rate_difference_pp_per_year": -4.3,
  "rate_difference_ci95_half_width_pp": 2.4,
  "distinguishable_at_95": true,
  "holds_value_better": "gasoline",
  "fit_r2": 0.883,
  "price_gap_by_age": [
    {
      "age": 6,
      "model_year": 2020,
      "gap_pct": -0.129,
      "ci95_half_width_pct": 0.087,
      "distinguishable_at_95": true
    }
  ],
  "related": {
    "model": "https://carsbuyer.org/fr/cote/seat-leon",
    "duel_index": "https://carsbuyer.org/fr/diesel-ou-essence",
    "methodology": "https://carsbuyer.org/fr/methodologie"
  }
}