HotSunTesTec is an ultra-thin 9.6-inch HD 2.5D display for Tesla Model 3 and Model Y electric vehicles. The screen, featuring ultra-thin bezels, installs quickly without requiring vehicle modifications. It has a resolution of 1920 x 480 and connects to the vehicle via high-speed wireless communication. It also integrates with Android Auto and CarPlay. It can be used as a navigator, multimedia system, or auxiliary system. Voice commands are supported through Google Assistant and Siri. The system runs on a Linux-based OS, offering high performance with low energy consumption. It includes multiple functions, such as displaying images from cameras.