Munnings was born on 15 November 1997. She is the daughter of the rally driver and instructor Chris Munnings and his wife Tracey. From the age of seven Munnings was educated at the all-girls schoolKent College, Pembury, and took three A level examinations. She acted as deputy head girl, an academic, and a performing arts and music scholar. Munnings competed in national athletics tournaments and was talent-spotted as a dancer. She combined her academic studies with her rally career, and declined a place at university. Munnings works with former racing driver Susie Wolff on her Dare to be Different campaign which encourages more girls to take up a career in motor racing, and the IAM RoadSmart charity. She has named the 1982 World Rally Championship runner-up Michèle Mouton as the person she idolises the most. Munnings currently lives with her family at their farm in Headcorn in Kent. When not competing in rally, she works at her parents' corporate events company.
Racing career
Munnings, whose original ambition was to become a vet, had her interests geared towards rallying from a young age by regularly visiting her father's workplace. She was able to execute a perfect handbrake turn by thirteen and provided driving lessons to her friends on a specially constructed circuit built by her father on the family farm. To qualify for an international licence which allowed her to partake in the European Rally Championship, Munnings entered six club rally events held in Wales and Norfolk. Her father acted as instructor and co-driver. Munnings received media training from Eurosport and was coached by former rally driver Urmo Aava. Munnings made her ERC début at the Ypres Rallybehind the wheel of a Peugeot 208 VTi R2 for Saintéloc Junior Team. It was at this rally that she began her partnership with the lawyer Anne Stein who was her co-driver. Munnings got one of her wheels on sodden grass and barrel rolled her car which damaged an electricity pylon. She finished 65th out of 67 drivers overall and was the only woman to complete the rally. Munnings's second rally of the 2016 season in Liepāja saw her again score points by reaching the end of the event. She had accumulated enough points to win the FIA European Rally Championship Ladies Trophy. In late 2016, Munnings was one of four athletes shortlisted for the Sunday Times Young Sportswoman of the Year. At the awards ceremony on 8 December, she lost the award to swimmer Siobhan-Marie O'Connor. Named a 2017 Peugeot UK Brand ambassador, Women of the Future, Sean Edwards Foundation Ambassador and IAM Roadsmart car ambassador, Munnings remained with Saintéloc for the 2017 season, but as part of the Peugeot Rally Academy where she was partnered with José Antonio Suárez and Pepe López. Munnings said before the new season that she wanted to put into practice the things she had learned from the previous year. Her first competitive run of the year came at the Rallye Açores where she retired on the fifth stage because of an accident. After securing a 68th overall finish in the 2017 Rally Islas Canarias, Munnings retired in the next rally she entered in, 2017 Rajd Rzeszowski, due to an accident. Her fourth event of the season in the 2017 Barum Rally Zlín saw her take stage class victories in spite of changing a broken wheel earlier on because of understeering on a narrow low-speed corner and hitting a kerb. Munnings's participation in the Rally di Roma Capitale was in doubt because of budget problems, but she confirmed her entry shortly before the event started. She took wins in the city stages and night stages in the Ladies Trophy rankings but the tricky conditions led her to slip off the road and get stuck in the ditch for ten minutes, leaving her in second position in the Ladies Trophy rankings. Munnings placed second in the Ladies Trophy championship overall and ranked 14th in the Junior Under 27 standings. For the 2018 season, she returned to compete for Saintéloc Junior Team in the Junior Under 27 Championship for the second year in a row and also contested for the Ladies Trophy. Munnings began the season by coming second in the Ladies Trophy and fifth in the Under 27 standings at the Rallye Azores. She had a total of four victories in the Ladies' Trophy, which she took in the season's final four rounds to place second in that championship. Her results caused her to finish eighth in the Junior Under 27 Championship with four fifth-place finishes. In the 2019 championship Munnings continued to compete in the ERC3 category, with her new co-driver Veronica Engan. Munnings received backing from the energy drinks company Red Bull UK for the upcoming season. She was the winner of the ERC Ladies category at Rally Liepāja 2019. In February 2020 she drove a specially prepared Bentley Continental in the GP Ice Race at Zell am See in Austria which culminated by teaming up with skier Sven Rauber for a demonstration of skijoring, where a skier is towed, at speed, behind a car.
Television career
Munnings was the original host of the CBeebies television programme Catie's Amazing Machines in 2018, in which she controlled large and fast vehicles. She opted not to return for its second series to concentrate on her driving career.