{
  "url": "https://carsbuyer.org/diesel-ou-gasolina/opel-astra",
  "slug": "opel-astra",
  "brand": "Opel",
  "model": "Astra",
  "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": 1992,
    "to": 2022
  },
  "diesel": {
    "sample_size": 225,
    "annual_depreciation_rate": 0.0803,
    "median_asking_eur": 3300,
    "median_mileage_km": 243000
  },
  "gasoline": {
    "sample_size": 109,
    "annual_depreciation_rate": 0.0706,
    "median_asking_eur": 2500,
    "median_mileage_km": 180000
  },
  "rate_difference_pp_per_year": -1,
  "rate_difference_ci95_half_width_pp": 1.5,
  "distinguishable_at_95": false,
  "holds_value_better": null,
  "premium_by_age": [
    {
      "age": 15,
      "premium_of": "diesel",
      "premium": -0.0092,
      "ci95_half_width": 0.1305
    },
    {
      "age": 19,
      "premium_of": "diesel",
      "premium": -0.0501,
      "ci95_half_width": 0.1003
    },
    {
      "age": 25,
      "premium_of": "diesel",
      "premium": -0.1082,
      "ci95_half_width": 0.1208
    }
  ],
  "fit_r2": 0.554,
  "licence": "https://carsbuyer.org/metodologia#licenca"
}