{
  "source": "Carsbuyer",
  "source_url": "https://carsbuyer.org/depreciacao/citroen-c4",
  "licence": "Citação permitida com atribuição a Carsbuyer e indicação da data.",
  "measured": "asking_price",
  "measured_note": "Preços PEDIDOS em anúncios ativos do OLX Portugal, não preços de venda fechados.",
  "collected_until": "2026-08-29",
  "updated_at": "2026-08-29T13:49:07Z",
  "market": "PT",
  "currency": "EUR",
  "brand": "Citroën",
  "model": "C4",
  "slug": "citroen-c4",
  "sample_size": 192,
  "method": "Ajuste log-linear do preço pedido mediano sobre o ano de fabrico; a taxa é uma percentagem do valor restante por ano de idade.",
  "annual_depreciation_rate": 0.1,
  "fit_r2": 0.975,
  "reference_year": 2026,
  "measured_age_range": {
    "from": 2,
    "to": 21
  },
  "model_year_range": {
    "from": 2005,
    "to": 2024
  },
  "half_life_years": 6.6,
  "retained_value": {
    "after_1y": 0.9,
    "after_3y": 0.73,
    "after_5y": 0.591,
    "after_8y": 0.432
  },
  "cost_of_one_year_of_age": [
    {
      "age": 2,
      "model_year": 2024,
      "cost_eur": 1988
    },
    {
      "age": 4,
      "model_year": 2022,
      "cost_eur": 1611
    },
    {
      "age": 5,
      "model_year": 2021,
      "cost_eur": 1451
    },
    {
      "age": 10,
      "model_year": 2016,
      "cost_eur": 858
    },
    {
      "age": 11,
      "model_year": 2015,
      "cost_eur": 772
    },
    {
      "age": 12,
      "model_year": 2014,
      "cost_eur": 695
    },
    {
      "age": 13,
      "model_year": 2013,
      "cost_eur": 626
    },
    {
      "age": 14,
      "model_year": 2012,
      "cost_eur": 564
    },
    {
      "age": 15,
      "model_year": 2011,
      "cost_eur": 507
    },
    {
      "age": 16,
      "model_year": 2010,
      "cost_eur": 457
    },
    {
      "age": 17,
      "model_year": 2009,
      "cost_eur": 411
    },
    {
      "age": 18,
      "model_year": 2008,
      "cost_eur": 370
    },
    {
      "age": 19,
      "model_year": 2007,
      "cost_eur": 333
    },
    {
      "age": 20,
      "model_year": 2006,
      "cost_eur": 300
    },
    {
      "age": 21,
      "model_year": 2005,
      "cost_eur": 270
    }
  ],
  "age_from_which_a_year_costs_under": {
    "threshold_eur": 500,
    "age": 16,
    "model_year": 2010,
    "fitted_price_eur": 4581
  },
  "rate_bend": null,
  "rate_bend_note": "Nenhuma quebra entre os 4 e os 15 anos explica os preços melhor do que uma taxa constante: neste modelo a percentagem não abranda com a idade.",
  "by_year": [
    {
      "year": 2024,
      "sample_size": 5,
      "asking_price_median": 18000,
      "mileage_km_median": 50300
    },
    {
      "year": 2022,
      "sample_size": 5,
      "asking_price_median": 16150,
      "mileage_km_median": 97495
    },
    {
      "year": 2021,
      "sample_size": 8,
      "asking_price_median": 14850,
      "mileage_km_median": 81000
    },
    {
      "year": 2016,
      "sample_size": 7,
      "asking_price_median": 9500,
      "mileage_km_median": 154618
    },
    {
      "year": 2015,
      "sample_size": 9,
      "asking_price_median": 8000,
      "mileage_km_median": 188000
    },
    {
      "year": 2014,
      "sample_size": 9,
      "asking_price_median": 7500,
      "mileage_km_median": 220000
    },
    {
      "year": 2013,
      "sample_size": 9,
      "asking_price_median": 5900,
      "mileage_km_median": 278000
    },
    {
      "year": 2012,
      "sample_size": 6,
      "asking_price_median": 5750,
      "mileage_km_median": 243200
    },
    {
      "year": 2011,
      "sample_size": 16,
      "asking_price_median": 6375,
      "mileage_km_median": 232500
    },
    {
      "year": 2010,
      "sample_size": 10,
      "asking_price_median": 3950,
      "mileage_km_median": 225990
    },
    {
      "year": 2009,
      "sample_size": 12,
      "asking_price_median": 3800,
      "mileage_km_median": 305000
    },
    {
      "year": 2008,
      "sample_size": 24,
      "asking_price_median": 3250,
      "mileage_km_median": 260000
    },
    {
      "year": 2007,
      "sample_size": 25,
      "asking_price_median": 3500,
      "mileage_km_median": 241131
    },
    {
      "year": 2006,
      "sample_size": 24,
      "asking_price_median": 2850,
      "mileage_km_median": 250000
    },
    {
      "year": 2005,
      "sample_size": 17,
      "asking_price_median": 2900,
      "mileage_km_median": 240000
    }
  ],
  "related": {
    "model": "https://carsbuyer.org/preco/citroen-c4",
    "hub": "https://carsbuyer.org/depreciacao",
    "methodology": "https://carsbuyer.org/metodologia"
  }
}