Lái Xe 3D is a free simulation game developed by Simulation.vn for Android 9.0 and above. This app is designed to help users practice the driving test for cars of class B in Vietnam. It offers a full range of sa-test papers for B-class cars, and users can either select individual tests to practice or take the complete exam.

The app features a test driving mode that simulates the sa car driving test, allowing users to experience the test firsthand. The app also provides feedback on the user's performance, highlighting areas that need improvement. Overall, Lái Xe 3D is a useful tool for those preparing for a driving test in Vietnam.