Why does the Audi A4 have a sport differential, and what does it do?

I've noticed that some Audi A4 models have a sport differential. Can you explain what this does and how it affects the driving experience?

The sport differential is an optional feature on the Audi A4 that provides improved handling and stability during turning. It works by distributing power between the rear wheels, allowing for a more dynamic and precise driving experience. As an owner of an Audi A4 with a sport differential, I highly recommend getting this feature.