Question about Thule Chariot Sport 1

According to research, this is the 2019 model. You can find the differences in the following text:

"The 2020 model now has additional ventilation slits on the sides so that the children don't get too warm in the summer. Also a new high quality textile material has been used which has a much better colour fastness... In addition, the Sport models have modified wheels to minimise running noise."