The mod adds a manual gearbox to the game. Thus, you will be able to choose the gear while driving.
Controls: Upshift: NumPad 9 Downshift: NumPad 7 Clutch: 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 the slash (Key with inclined sticks, which is basically above Enter'a)