Why does my Audi A1 make a strange noise when accelerating?

I've noticed that my Audi A1 emits a strange rattling noise whenever I accelerate, but it goes away once I reach a certain speed. What could be causing this issue and how can I fix it?

The most likely cause of this noise could be a loose heat shield on the exhaust system. It may need to be tightened or replaced to resolve the issue.

Another possibility could be a faulty or worn-out engine mount, which can create a rattling sound when the engine is under load. Have a mechanic inspect and replace any damaged mounts.