[
  {
    "name": "_primaryKey",
    "type": "string",
    "description": "Unique identifier for this record",
    "fillRate": 100,
    "premium": false
  },
  {
    "name": "_firstSeenAt",
    "type": "datetime",
    "description": "First time this record was seen",
    "fillRate": 100,
    "premium": false
  },
  {
    "name": "_lastSeenAt",
    "type": "datetime",
    "description": "Last time this record was updated",
    "fillRate": 100,
    "premium": false
  },
  {
    "name": "listingId",
    "type": "string",
    "description": "Unique Cars.com listing UUID (e.g., 62a9e175-556a-49da-b18e-e2ac95ef83ba)",
    "fillRate": 100,
    "premium": false
  },
  {
    "name": "vin",
    "type": "string",
    "description": "Vehicle Identification Number (17-character unique code)",
    "fillRate": 100,
    "premium": true
  },
  {
    "name": "stockType",
    "type": "string",
    "description": "Listing type (New, Used, Certified)",
    "fillRate": 100,
    "premium": false
  },
  {
    "name": "year",
    "type": "float",
    "description": "Vehicle model year",
    "fillRate": 100,
    "premium": false
  },
  {
    "name": "make",
    "type": "string",
    "description": "Vehicle manufacturer (e.g., Mazda, Audi, Toyota)",
    "fillRate": 100,
    "premium": false
  },
  {
    "name": "model",
    "type": "string",
    "description": "Vehicle model name (e.g., CX-5, Q5, Camry)",
    "fillRate": 100,
    "premium": false
  },
  {
    "name": "trim",
    "type": "string",
    "description": "Vehicle trim level (e.g., 2.5 S Preferred Package, Premium Plus 45 TFSI)",
    "fillRate": 98,
    "premium": false
  },
  {
    "name": "price",
    "type": "float",
    "description": "Listed price in USD",
    "fillRate": 100,
    "premium": true
  },
  {
    "name": "msrp",
    "type": "float",
    "description": "Manufacturer suggested retail price in USD",
    "fillRate": 42,
    "premium": true
  },
  {
    "name": "mileage",
    "type": "float",
    "description": "Odometer reading in miles",
    "fillRate": 99,
    "premium": false
  },
  {
    "name": "bodyStyle",
    "type": "string",
    "description": "Body style (Sedan, SUV, Coupe, Hatchback, Truck, etc.)",
    "fillRate": 100,
    "premium": false
  },
  {
    "name": "exteriorColor",
    "type": "string",
    "description": "Exterior color (e.g., Black, White, Silver)",
    "fillRate": 99,
    "premium": false
  },
  {
    "name": "interiorColor",
    "type": "string",
    "description": "Interior color (e.g., Black Leather, Beige)",
    "fillRate": 97,
    "premium": false
  },
  {
    "name": "drivetrain",
    "type": "string",
    "description": "Drivetrain type (e.g., All-wheel Drive, Front-wheel Drive, Four-wheel Drive, Rear-wheel Drive, FWD, AWD)",
    "fillRate": 98,
    "premium": false
  },
  {
    "name": "transmission",
    "type": "string",
    "description": "Transmission type (e.g., Automatic, Manual)",
    "fillRate": 1,
    "premium": false
  },
  {
    "name": "engine",
    "type": "string",
    "description": "Engine description (e.g., SKYACTIV-G 2.5L I-4)",
    "fillRate": 1,
    "premium": false
  },
  {
    "name": "fuelType",
    "type": "string",
    "description": "Fuel type (e.g., Gasoline, Hybrid, E85 Flex Fuel, Diesel)",
    "fillRate": 98,
    "premium": false
  },
  {
    "name": "mpg",
    "type": "string",
    "description": "EPA mileage rating range (e.g., 26-30)",
    "fillRate": 1,
    "premium": false
  },
  {
    "name": "stockNumber",
    "type": "string",
    "description": "Dealer stock number",
    "fillRate": 1,
    "premium": false
  },
  {
    "name": "sellerType",
    "type": "string",
    "description": "Seller type (e.g., dealership)",
    "fillRate": 100,
    "premium": false
  },
  {
    "name": "sellerName",
    "type": "string",
    "description": "Seller/dealer name (e.g., Liberty Mazda, Audi Richmond)",
    "fillRate": 99,
    "premium": true
  },
  {
    "name": "sellerCity",
    "type": "string",
    "description": "Seller city location",
    "fillRate": 99,
    "premium": false
  },
  {
    "name": "sellerState",
    "type": "string",
    "description": "Seller state abbreviation (e.g., CT, VA)",
    "fillRate": 99,
    "premium": false
  },
  {
    "name": "images",
    "type": "array",
    "description": "Array of all listing photo URLs",
    "fillRate": 32,
    "premium": true
  },
  {
    "name": "imagesCount",
    "type": "float",
    "description": "Number of listing images",
    "fillRate": 32,
    "premium": false
  },
  {
    "name": "options",
    "type": "array",
    "description": "Array of vehicle options (e.g., Adaptive Cruise Control, Heated Seats, Bluetooth)",
    "fillRate": 1,
    "premium": false
  },
  {
    "name": "optionsCount",
    "type": "float",
    "description": "Number of vehicle options",
    "fillRate": 1,
    "premium": false
  },
  {
    "name": "description",
    "type": "string",
    "description": "Seller description/notes about the vehicle",
    "fillRate": 1,
    "premium": false
  },
  {
    "name": "listingUrl",
    "type": "string",
    "description": "Full URL to the Cars.com vehicle listing page",
    "fillRate": 100,
    "premium": true
  }
]