{
  "url": "https://carsbuyer.org/manual-ou-automatica/citroen-c4",
  "slug": "citroen-c4",
  "brand": "Citroën",
  "model": "C4",
  "compares": "transmission",
  "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
  },
  "manual": {
    "sample_size": 138,
    "annual_depreciation_rate": 0.0887,
    "median_asking_eur": 3925,
    "median_mileage_km": 235881
  },
  "automatic": {
    "sample_size": 45,
    "annual_depreciation_rate": 0.0766,
    "median_asking_eur": 15950,
    "median_mileage_km": 120000
  },
  "rate_difference_pp_per_year": -1.2,
  "rate_difference_ci95_half_width_pp": 1.2,
  "distinguishable_at_95": true,
  "holds_value_better": "automatic",
  "premium_by_age": [
    {
      "age": 9,
      "premium_of": "manual",
      "premium": -0.1248,
      "ci95_half_width": 0.08
    },
    {
      "age": 16,
      "premium_of": "manual",
      "premium": -0.2024,
      "ci95_half_width": 0.0793
    },
    {
      "age": 19,
      "premium_of": "manual",
      "premium": -0.2335,
      "ci95_half_width": 0.0957
    }
  ],
  "fit_r2": 0.891,
  "licence": "https://carsbuyer.org/metodologia#licenca"
}