“Sonja” is the eleventh car of the Road Arrow team and the second fully electric Formula Student race car developed at the University of Belgrade.

All the effort paid off in the 2025 season, when Road Arrow represented Serbia at Formula Student competitions in Croatia, Poland and Italy. The season went down as one of the most successful in the team’s history: a historic appearance with two cars in Croatia, excellent results in the static events in Poland and, in Italy, the first successfully completed Endurance race since 2017, finishing 8th in that event and 14th overall.