The mod adds a manual gearbox to the game. This way, you can choose your own gear while driving.
Control:
Upshift: NumPad 9;
Downshift: NumPad 7;
Grip: NumPad 8;
Engine: NumPad 5.
You can configure the mod's controls in the Gears.ini file, which is located in the root folder of the game. You can find key codes in the file VK_Keycodes.txt To switch back to the automatic transmission, you need to press slash (The key with inclined sticks, which is basically above Enter)