Why does the car move without pressing the accelerator?

[StAdriana]

Why does the car move without pressing the accelerator? The explanation is as follows: 1. Manual transmission: Manual transmission cars have an idle phase, where they will move at idle speed even without pressing the accelerator or the brake. This action is generally referred to as starting crawl, and no matter at what speed you release the brake when starting, the vehicle will not stall. 2. Automatic transmission: Because automatic transmissions do not have a clutch, once the forward gear is engaged, the vehicle will move even without pressing the accelerator, at a speed of about 15 km/h. Therefore, if you want to move at a very slow speed, you need to use the brake to reduce the speed. Generally, the larger the engine displacement, the higher the idle speed, but it won't be too extreme because, after all, the first gear is a low-speed gear.