- The object that you hit may be small or light enough that it doesn't cause any noticeable damage to your car.
- The object that you hit may be in a blind spot or out of your line of sight, so you don't see it when it happens.
- You may be distracted or otherwise not paying attention to the road when you hit something.
- The object that you hit may be obscured by other objects, such as trees or buildings, so you don't notice it until later.
If you think that you may have hit something with your car, even if you're not sure, it's always best to pull over and inspect your car for damage. If there is any damage, you should report it to your insurance company as soon as possible.