Switching to open-wheel racing for 2013, and relocating to Europe, Fittipaldi competed in the British-based BRDC Formula 4 Championship and the BARC Formula Renault Championship. A dominating 2014 season in the Protyre Formula Renault Championship delivered a title with 10 wins from 15 starts.
Fittipaldi graduated to the FIA Formula 3 European Championship in 2016, scoring three podiums, and raced in the MRF Challenge Formula 2000 Championship, winning the series courtesy of four victories from nine podium finishes.
Another open-wheel title followed when Fittipaldi won the Formula V8 3.5 Championship in 2017 with six wins, 10 podiums, and a series-record 10 pole positions.
2018 saw Fittipaldi return Stateside to compete in the IndyCar Series with Dale Coyne Racing, his deal commencing with April’s event in Phoenix. His race program was curtailed however after breaking both legs in an accident in May’s World Endurance Championship 6 Hours of Circuit de Spa-Francorchamps. Fittipaldi returned to his IndyCar commitments at the end of July that season, making five more starts with a best finish of ninth place at the Grand Prix of Portland in September.
In 2018 in Sao Paulo, Brazil Fittipaldi was confirmed as Haas F1 Team’s official 2019 test driver. He capped his year with a Formula 1 debut steering the team’s VF-18 at the post-season Pirelli tire test. 2019 saw Fittipaldi combine a season competing for Audi Sport Team WRT in the Deutsche Tourenwagen Masters (DTM), where he finished 15th overall, with test drives behind the wheel of the Haas VF-19 – participating in tests in Spain, Bahrain and Abu Dhabi, as well as simulator duties throughout the season.
Continuing in 2020 as test and reserve driver, Fittipaldi subsequently made two grand prix starts for Haas F1 Team standing in for the injured Romain Grosjean at the Sakhir Grand Prix and Abu Dhabi Grand Prix in December – taking the checkered flag in both races. In 2021 and 2022 he took part in free practice sessions as part of mandated ‘rookie’ sessions and carried out post-season test duties.