{"methodology":"https://wiveda.de/auto-bewerten/methodik","brand_slug":"bmw","brand_name":"BMW","model_slug":"320-gran-turismo","model_name":"320 Gran Turismo","sample_size":3,"price_min":12190,"price_median":12990,"price_max":18558,"thin":true,"price_history":[{"month":"2026-07","median_price":19950,"sample_size":1},{"month":"2026-08","median_price":19950,"sample_size":1},{"month":"2026-09","median_price":12990,"sample_size":3}],"generated_at":"2026-09-11T14:18:30.290644Z"}