The size of the central control panel of 2 1 Cadillac is determined by the vehicle design and cannot be changed directly. Cadillac's central control system is a complex system that integrates multiple functions and control modules, including the connection with various sensors and electronic equipment of the vehicle. Replacing the central control panel needs to redesign and adjust the whole system, which is a complex project and requires professional technology and equipment. It is impossible to simply change the size of Cadillac's central control screen. I hope to have a larger central control panel, buy a vehicle with a larger central control panel, and consider upgrading the central control system of existing vehicles, but it will be carried out in a professional automobile modification institution, which will have an impact on the original design and warranty of vehicles.