{
  "url": "https://carsbuyer.org/pt/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": "2026-09-15",
  "model_years": {
    "from": 1992,
    "to": 2021
  },
  "diesel": {
    "sample_size": 209,
    "annual_depreciation_rate": 0.079,
    "median_asking_eur": 3490,
    "median_mileage_km": 250000
  },
  "gasoline": {
    "sample_size": 88,
    "annual_depreciation_rate": 0.0577,
    "median_asking_eur": 1900,
    "median_mileage_km": 209805
  },
  "rate_difference_pp_per_year": -2.1,
  "rate_difference_ci95_half_width_pp": 1.6,
  "distinguishable_at_95": true,
  "holds_value_better": "gasoline",
  "premium_by_age": [
    {
      "age": 20,
      "premium_of": "diesel",
      "premium": 0.1452,
      "ci95_half_width": 0.1354
    },
    {
      "age": 26,
      "premium_of": "diesel",
      "premium": -0.0011,
      "ci95_half_width": 0.1295
    }
  ],
  "fit_r2": 0.605,
  "licence": "https://carsbuyer.org/pt/metodologia#licenca"
}