[3] Following a sixth-place finish in the standings and the Rookie Trophy title, the German moved to Hyundai Team Engstler ahead of the 2019 season.

[6] Hesse switched his focus to the Nürburgring Langstrecken-Serie from 2020 onward as a newly-minted BMW junior driver, racing in multiple events in the SP8T and Cup 5 classes.

[9] In 2021, he and N24-winning teammates Dan Harper and Neil Verhagen went on to drive in the NLS's SP9 category, the highest-placed GT class, under the Team RMG banner.

[12][13] Their highlight performance came with a second place at the 2023 season-opener at Monza, in the first year which Hesse, Harper, and Verhagen contested as full BMW factory drivers.

[20] Hesse added to his accolades at the end of May by taking pole position for the Nürburgring 24 Hours, making him the youngest polesitter in the history of the race.