Why is my Audi A6 emitting a strange noise?

I've been driving my Audi A6 for a few months now and I've noticed that it's been making a strange noise when I press on the gas pedal. It sounds like a loud whirring or grinding noise. What could be causing this?

It's possible that your car's exhaust system is damaged or has a leak. Check for any visible damage or leaks and if you find any, get them repaired as soon as possible. If not, take your car to a trusted mechanic for a proper diagnosis.