[
  { "carModel": "Audi",      "price": 0,  "color": "blue" },
  { "carModel": "BMW",       "price": 15000,  "color": "red" },
  { "carModel": "Mercedes",  "price": 20000,  "color": "yellow" },
  { "carModel": "Porsche",   "price": 30000,  "color": "green" }
]