I mentioned this a week or so ago, but now there is an article out. For those questioning why the CS can make sense. 718 GT4 only .8 second faster than CS around hockenheim. CS also had a fuel starvation on that lap. Dedicated 2 seater vs do more 4 seater.
https://www.carscoops.com/2019/11/20...-at-the-track/
Edit: It's not a fueling issue (hpfp or lpfp cannot keep up). It's simply not enough gas left in the tank in that lap. ( See below)