Actually there is news on the Nations Cup format hidden away on the website;
https://www.gran-turismo.com/au/gtsport/fia2019/detail/
4 stages of 10 rounds, and each stage is a self-contained competition with the prize at the end being a World Tour invite. World Tour winners get an automatic berth at the World Final, with the remaining spots determined by online performance over the entire year. Very tough to qualify for a Tour though, and the unfortunate end of Regional Finals means that my loophole for getting a free holiday despite being a scrub is gone in Nations. I may have to find another way, be it Supra Cup or Manufacturers Series.
https://www.gran-turismo.com/au/gtsport/fia2019/detail/
4 stages of 10 rounds, and each stage is a self-contained competition with the prize at the end being a World Tour invite. World Tour winners get an automatic berth at the World Final, with the remaining spots determined by online performance over the entire year. Very tough to qualify for a Tour though, and the unfortunate end of Regional Finals means that my loophole for getting a free holiday despite being a scrub is gone in Nations. I may have to find another way, be it Supra Cup or Manufacturers Series.