How often should the Audi R8's spark plugs be replaced?

I've had my Audi R8 for a few years now and I'm not sure when I should be replacing the spark plugs. Can you provide any insight or recommendations for how often they should be replaced?

It is recommended to replace the spark plugs on your Audi R8 every 25,000 to 30,000 miles.

If your Audi R8 is driven under harsh conditions, such as stop-and-go traffic or extreme temperatures, it's best to replace the spark plugs sooner rather than later.