2021–2023 In 2021, Breidinger announced a part-time schedule in the
ARCA Racing Series alongside the
NASCAR Craftsman Truck Series for
Young's Motorsports. In her debut with the team, she finished eighteenth, in the process becoming the first Arab-American woman to race in any national touring NASCAR series. However, after five ARCA starts with the team and no Truck Series starts, she moved to
Venturini Motorsports midway through the season to race four additional ARCA races for them, joining the
Toyota Racing Development (TRD) team. The following year, Breidinger ran her first full-time season in ARCA for the series'
2022 season, staying with Venturini Motorsports. In the season-opener, she finished in the top-ten at
Daytona. The season's opening ten rounds saw Breidinger achieve four top-ten finishes, At the conclusion of her first full-time season, she finished sixth in the series standings, obtaining six total top-ten finishes and failing to finish four races throughout the season. Breidinger remained at Venturini Motorsports for the
2023 season, scaling back to a part-time ARCA schedule and initially signing for 11 races. In addition to her ARCA schedule, she raced full-time for Nitro Motorsports in the inaugural season of the Toyota North America GR Cup, a touring car racing series exclusively limited to
Toyota GR86 cars. According to Breidinger, she raced in the series to gain more road course experience. In the 2023 ARCA season, Breidinger was able to secure her first top-five finish in the series, earning four top-fives in the season and earning a best race finish of third at
Kansas. Also in 2023, Breidinger made her debut in the
NASCAR Craftsman Truck Series for
Tricon Garage, finishing in fifteenth at the Heart of America 200. Afterwards, she raced two additional events for the team in the
2023 Truck season.
2024–present Breidinger returned to a full-time schedule for the
2024 season, remaining at Venturini Motorsports. In the season-opener race at
Daytona, she wrecked out early in the race in a multi-car crash. She achieved eleven top-ten finishes throughout the 20-race season, with a best race finish of sixth. In addition, she failed to finish three additional races due to crashes. She finished the season with an average start of 12.0 and an average finish of 12.2, coming in fourth in the series standings. However, she finished all but two of her first 15 races. In her final ten races, she failed to finish in four races, finishing no better than 24th in any of the ten races. During the same weekend, she had several personal belongings stolen after someone broke into her car on August 8; the items were found a month later. She finished the year 23rd in the driver's standings, with an average start of 26.7 and an average finish of 25.4. In her first attempt for the team, she failed to qualify for the season-opening race at
Daytona, finishing the second slowest of all qualifiers; only ahead of
Greg Van Alst. ==Non-racing ventures and personal life==