{
  "source": "Carsbuyer",
  "source_url": "https://carsbuyer.org/fr/comparer/citroen-c4-vs-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.",
  "collected_until": "2026-10-24",
  "updated_at": "2026-10-24T08:35:12Z",
  "market": "FR",
  "currency": "EUR",
  "language": "fr",
  "comparison": {
    "method": "same_model_year",
    "common_years": 6,
    "compared_sample": 48,
    "dearer": "seat-leon",
    "premium": 0.8432973189275712,
    "note": "Prix demandé des deux modèles au même millésime (médiane)"
  },
  "models": [
    {
      "slug": "citroen-c4",
      "brand": "Citroën",
      "model": "C4",
      "sample_size": 87,
      "asking_price": {
        "median": 16799,
        "p25": 9594,
        "p75": 21490
      },
      "fair_value_estimate": {
        "median": 17339,
        "low": 15014,
        "high": 19889
      },
      "mileage_km_median": 55738,
      "model_years": {
        "from": 2008,
        "to": 2026
      },
      "annual_depreciation": 0.11842017964477392,
      "price_spread": 0.7081373891303053,
      "page": "https://carsbuyer.org/fr/cote/citroen-c4"
    },
    {
      "slug": "seat-leon",
      "brand": "Seat",
      "model": "Leon",
      "sample_size": 142,
      "asking_price": {
        "median": 30874,
        "p25": 18391,
        "p75": 40859
      },
      "fair_value_estimate": {
        "median": 29698,
        "low": 25125,
        "high": 36653
      },
      "mileage_km_median": 5000,
      "model_years": {
        "from": 2011,
        "to": 2026
      },
      "annual_depreciation": 0.12416857975338946,
      "price_spread": 0.7277320722938395,
      "page": "https://carsbuyer.org/fr/cote/seat-leon"
    }
  ],
  "by_year": [
    {
      "year": 2026,
      "asking_price_median": {
        "citroen-c4": 24990,
        "seat-leon": 46064
      },
      "sample_size": {
        "citroen-c4": 17,
        "seat-leon": 37
      },
      "dearer": "seat-leon",
      "premium": 0.843297318927571
    },
    {
      "year": 2025,
      "asking_price_median": {
        "citroen-c4": 19990,
        "seat-leon": 40859
      },
      "sample_size": {
        "citroen-c4": 7,
        "seat-leon": 42
      },
      "dearer": "seat-leon",
      "premium": 1.0439719859929966
    },
    {
      "year": 2024,
      "asking_price_median": {
        "citroen-c4": 19980,
        "seat-leon": 18385
      },
      "sample_size": {
        "citroen-c4": 15,
        "seat-leon": 8
      },
      "dearer": "citroen-c4",
      "premium": 0.08675550720696212
    },
    {
      "year": 2023,
      "asking_price_median": {
        "citroen-c4": 16400,
        "seat-leon": 22450
      },
      "sample_size": {
        "citroen-c4": 6,
        "seat-leon": 5
      },
      "dearer": "seat-leon",
      "premium": 0.36890243902439024
    },
    {
      "year": 2020,
      "asking_price_median": {
        "citroen-c4": 11985,
        "seat-leon": 17990
      },
      "sample_size": {
        "citroen-c4": 6,
        "seat-leon": 25
      },
      "dearer": "seat-leon",
      "premium": 0.5010429703796413
    },
    {
      "year": 2019,
      "asking_price_median": {
        "citroen-c4": 7990,
        "seat-leon": 16499
      },
      "sample_size": {
        "citroen-c4": 7,
        "seat-leon": 5
      },
      "dearer": "seat-leon",
      "premium": 1.0649561952440552
    }
  ],
  "related": {
    "comparisons_index": "https://carsbuyer.org/fr/comparer",
    "models_index": "https://carsbuyer.org/fr/prix",
    "methodology": "https://carsbuyer.org/fr/methodologie"
  }
}