The new GTP Pilot Sport Endurance tires on the cars competing in the GTP class look a bit different. The tread pattern is the talking point to get free publicity for the 50% recycled material tires factoid, which is interesting.

The texture is called the “Vision” pattern and it is designed to help with initial warmup, since the cars of IMSA do not utilize tire warmers. 

Previously, it could take multiple laps to get the tires up to full operating temperature

These new GTP treads are composed of 50% recycled or renewable material, but last just as long during hard driving stints, including the double stints that often take place at big races like the 24 at Daytona.

https://www.hagerty.com/media/maintenance-and-tech/youre-going-to-see-weird-tires-at-the-24-hours-of-daytona-heres-why/