News you want to use week 16.

Google look to be testing a new double Google Shopping carousel format on Mobile search results. They are basically two individual carousels that are stacked on top of each other. Google will be looking to push their Shopping ad format testing from now until the end of Q3 before the peak shopping season begins in order to make it work as hard as possible for them, and advertisers. 

As you can see, it consist of two elements;

1. The regular Product Listing Ad at the top of the format which lists the individual products for the search query
2. Shop by Store which is the Showcase Shopping Ad format