Why is my Volkswagen Polo making a strange noise?

I recently purchased a used Volkswagen Polo and have noticed that it's making a strange noise when I accelerate. It sounds like a low rumbling noise. Does anyone know what might be causing this and if it's something I should be worried about?

It could be a problem with the exhaust system, such as a loose muffler or a hole in the exhaust pipe. I would recommend taking it to a mechanic to get it checked out.

It could also be an issue with the tires, such as uneven tire wear or a loose lug nut. Have a mechanic take a look to make sure everything is secure and properly aligned.

Another possibility is that the noise is coming from the engine. This could indicate a problem with the belts, pulleys, or even the engine itself. It's best to have a professional diagnose and repair this issue.

Or, it could simply be a result of regular wear and tear on the car. Make sure you're keeping up with regular maintenance and oil changes to prevent any further issues.