{
  "chassis": {
    "scale": "1/27 Compact",
    "wheelbase_mm": 102,
    "track_front_mm": 58,
    "track_rear_mm": 60,
    "deck_mm": [
      76,
      130,
      2.5
    ],
    "deck_material": "PETG",
    "ground_clearance_mm": 7
  },
  "drivetrain": [
    {
      "slot": "Front Left Wheel",
      "model": "PN Racing PN-WS-F1",
      "size_mm": "Ø25×8",
      "axle": "M2×16",
      "price_usd": 4.0
    },
    {
      "slot": "Front Right Wheel",
      "model": "PN Racing PN-WS-F1",
      "size_mm": "Ø25×8",
      "axle": "M2×16",
      "price_usd": 4.0
    },
    {
      "slot": "Rear Left Wheel",
      "model": "PN Racing PN-WS-R1",
      "size_mm": "Ø28×11",
      "axle": "M2×20",
      "price_usd": 4.0
    },
    {
      "slot": "Rear Right Wheel",
      "model": "PN Racing PN-WS-R1",
      "size_mm": "Ø28×11",
      "axle": "M2×20",
      "price_usd": 4.0
    },
    {
      "slot": "Front Bearing",
      "model": "684ZZ (4×9×4)",
      "qty": 2,
      "price_usd": 1.5
    },
    {
      "slot": "Rear Bearing",
      "model": "693ZZ (3×8×4)",
      "qty": 2,
      "price_usd": 1.0
    },
    {
      "slot": "Dogbones",
      "model": "PN Racing PN-DB-30 steel",
      "qty": 2,
      "price_usd": 4.0
    },
    {
      "slot": "Pinion",
      "model": "M0.3 10T steel",
      "qty": 1,
      "price_usd": 1.5
    },
    {
      "slot": "Spur gear",
      "model": "M0.3 56T delrin",
      "qty": 1,
      "price_usd": 1.5
    },
    {
      "slot": "Motor",
      "model": "RC0615 brushless 14000KV",
      "size_mm": "Ø6×15",
      "voltage": "1S",
      "price_usd": 5.0
    },
    {
      "slot": "ESC",
      "model": "Hobbywing XeRun Mini 10A",
      "size_mm": "20×15×5",
      "current": "10A",
      "price_usd": 14.0
    },
    {
      "slot": "Servo",
      "model": "EMAX ES9051",
      "size_mm": "20×18×8",
      "torque": "1.5kg",
      "price_usd": 7.0
    },
    {
      "slot": "Battery",
      "model": "1S LiPo 300mAh 50C",
      "size_mm": "30×18×8",
      "conn": "XT30",
      "price_usd": 4.5
    },
    {
      "slot": "Shocks",
      "model": "PN Racing PN-SHK-30",
      "size_mm": "Ø5.5×30",
      "type": "oil-filled",
      "price_usd": 14.0
    }
  ],
  "fpv": [
    {
      "slot": "FPV Camera",
      "model": "Eachine C01 PRO",
      "size_mm": "14×14×16",
      "res": "1200TVL",
      "price_usd": 12.0
    },
    {
      "slot": "VTX",
      "model": "Eachine TX01S 25mW",
      "size_mm": "14×11×3",
      "band": "5.8GHz",
      "price_usd": 9.0
    },
    {
      "slot": "VTX Antenna",
      "model": "Pagoda RHCP 5.8GHz",
      "type": "stubby",
      "price_usd": 2.0
    },
    {
      "slot": "VRX (PC side)",
      "model": "Eachine ProDVR 5.8GHz",
      "out": "USB",
      "price_usd": 22.0
    },
    {
      "slot": "VRX Antenna",
      "model": "RHCP 5.8GHz panel/stubby",
      "type": "panel recommended",
      "price_usd": 5.0
    }
  ],
  "agent": [
    {
      "slot": "MCU",
      "model": "ESP32-S3-WROOM-1 DevKitC",
      "size_mm": "25×18",
      "wifi": "2.4GHz",
      "price_usd": 6.0
    },
    {
      "slot": "IMU",
      "model": "MPU-6050",
      "size_mm": "16×11",
      "price_usd": 1.5
    },
    {
      "slot": "Buck 5V",
      "model": "Mini-360",
      "i_max": "2A",
      "price_usd": 1.0
    }
  ],
  "body": [
    {
      "slot": "Body shell",
      "model": "Tamiya F103 Lexan 0.5mm",
      "scale": "1/27",
      "alt": "PN Racing F1",
      "price_usd": 15.0
    },
    {
      "slot": "Body posts",
      "model": "Custom PETG",
      "qty": 4,
      "note": "print self",
      "price_usd": 0.0
    },
    {
      "slot": "Front/rear bumper",
      "model": "Custom TPU 95A",
      "note": "print self",
      "price_usd": 0.0
    }
  ],
  "totals": {
    "per_car_usd": 137.5,
    "4_cars_usd": 550.0,
    "track_infra_usd": 200.0,
    "grand_total_usd": 750.0
  }
}