Before designing your own driftspeeder, try flying a test speeder that's already in the garage to get an idea of the environment.
Click Play to test.
Walk up to the robot, Maja-M35, and press E.
Below are controls for in-game.
Action Control Move W A S D or arrow keys Rotate Hold the right mouse button and look around. Pan Hold the middle mouse button to drag your camera around. Select Race from the menu options. In a race, you'll fly through rings to make the fastest time.
For now, there's only one driftspeeder in the garage to choose from. Select it and then click Start.
Wait for the countdown to finish. While inside, take a minute to get used to flying with the controls below. Since you can't use the mouse while flying, remember to exit the speeder by pressing E.
Below are controls for the speeder.
Action Control Move the Speeder W A S D or arrow keys Boost Speed Shift Exit the Speeder E Stop playing by pressing the red square or press Shift + F5.