1. You can check the registration certificate or driving license of the vehicle. These documents will contain information about the vehicle, including the year and model of production.

2. You can also query the vehicle identification number (VIN) to determine the specific year of the production of Bluebird and other detailed information. VIN is a unique serial number consisting of 17 characters, which can be found in the lower right corner of the front windshield of the vehicle or on the door. Through the VIN code, you can query the production date, manufacturer, model and other detailed information of the vehicle.