Panzer 58 question

Dwigt: Hello, It's a different vehicle and has basically the same stats like the Panzer 58 Mutz. The only slight difference between the 2 tanks is that the Panzer 58 Mutz comes with a camo bonus. 
We linked the Mutz in the article because the Panzer 58 is not available yet in our Tankopedia. 

If you have the Mutz or the Schwartz you can swap them with the Panzer 58 if you like.
More info in the link  https://eu.wargaming.net/support/en/products/wot/hot-issues/22988/