{
  "url": "https://carsbuyer.org/diesel-ou-gasolina/citroen-c4",
  "slug": "citroen-c4",
  "brand": "Citroën",
  "model": "C4",
  "compares": "fuel_type",
  "measured": "asking_price",
  "method": "log(price) ~ age + log(mileage) + side + age*side, OLS on active listings",
  "collected_until": "2026-08-30",
  "model_years": {
    "from": 2005,
    "to": 2025
  },
  "diesel": {
    "sample_size": 119,
    "annual_depreciation_rate": 0.0955,
    "median_asking_eur": 4000,
    "median_mileage_km": 259783
  },
  "gasoline": {
    "sample_size": 51,
    "annual_depreciation_rate": 0.0847,
    "median_asking_eur": 6990,
    "median_mileage_km": 120000
  },
  "rate_difference_pp_per_year": -1.1,
  "rate_difference_ci95_half_width_pp": 1.2,
  "distinguishable_at_95": false,
  "holds_value_better": null,
  "premium_by_age": [
    {
      "age": 10,
      "premium_of": "diesel",
      "premium": 0.1799,
      "ci95_half_width": 0.1244
    },
    {
      "age": 16,
      "premium_of": "diesel",
      "premium": 0.0987,
      "ci95_half_width": 0.0993
    },
    {
      "age": 19,
      "premium_of": "diesel",
      "premium": 0.0603,
      "ci95_half_width": 0.113
    }
  ],
  "fit_r2": 0.87,
  "licence": "https://carsbuyer.org/metodologia#licenca"
}