{
  "url": "https://carsbuyer.org/pt/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": "2026-09-15",
  "model_years": {
    "from": 2004,
    "to": 2023
  },
  "manual": {
    "sample_size": 150,
    "annual_depreciation_rate": 0.0815,
    "median_asking_eur": 3750,
    "median_mileage_km": 241000
  },
  "automatic": {
    "sample_size": 33,
    "annual_depreciation_rate": 0.0824,
    "median_asking_eur": 7150,
    "median_mileage_km": 199340
  },
  "rate_difference_pp_per_year": 0.1,
  "rate_difference_ci95_half_width_pp": 1.4,
  "distinguishable_at_95": false,
  "holds_value_better": null,
  "premium_by_age": [
    {
      "age": 12,
      "premium_of": "manual",
      "premium": -0.1537,
      "ci95_half_width": 0.0714
    },
    {
      "age": 17,
      "premium_of": "manual",
      "premium": -0.1496,
      "ci95_half_width": 0.0813
    },
    {
      "age": 20,
      "premium_of": "manual",
      "premium": -0.1471,
      "ci95_half_width": 0.1064
    }
  ],
  "fit_r2": 0.856,
  "licence": "https://carsbuyer.org/pt/metodologia#licenca"
}