All competitors drove identical Tatuus FR-19 cars powered by 1.8-litre Alpine-badged turbocharged Nissan MR18 engines on Pirelli tyres, maintaining the spec chassis and tyre formula that underpins the series.
Nine of the eleven teams from 2024 returned for 2025. Iron Dames, who had fielded an all-female lineup in 2024, withdrew to focus on endurance racing. MP Motorsport, a series stalwart since its inception, also departed; their entry was replaced by CL Motorsport, a new Italian-based team with Chinese backing. AKCEL GP, an Emirati outfit, joined as the first Asian team in the championship's history. KIC Motorsport was pre-selected but discontinued their programme before the season began.
Prema Racing's championship-winning trio from 2024 graduated to FIA Formula 3. Reigning champion Rafael Camara and James Wharton moved to Trident and ART Grand Prix in F3 respectively, while Ugo Ugochukwu remained with Prema. In their place, Prema promoted Freddie Slater — the double 2024 Formula 4 champion in UAE and Italy — and Rashid Al Dhaheri, who finished fourth and tenth in those same championships. Jack Beeton, runner-up to Slater in Italian F4, completed a three-car main lineup, with Doriane Pin contesting rounds that did not clash with her F1 Academy schedule.
The championship opened at Misano, where Slater took pole for race one but was eliminated early after contact with Jin Nakamura. Trident's Matteo De Palo inherited victory, with Evan Giltaire winning race two. At Spa-Francorchamps, qualifying for the first race was abandoned following a crash, with the grid set from practice times. Slater recovered to win after briefly yielding a position, while Enzo Deligny took race two. At Zandvoort, VAR's Pedro Clerot took maiden poles for both races, but Slater seized the initiative in race one to win from third on the grid, and Clerot won race two. After three rounds, three different drivers had led the championship.
The Hungaroring saw De Palo win race one and Slater take race two after Deligny was disqualified post-race for a technical infringement. At Paul Ricard, Slater won both races to open a 20-point championship lead. At Imola, Deligny and Bohra won the two races, though Slater's result in race two was voided by disqualification, cutting his lead to 15 points. At the Red Bull Ring, De Palo won race one from pole to reclaim the championship lead, but a first-lap collision in race two left the Italian three laps down after multiple pit stops. Clerot won race two, and Slater recovered to fourth to retake the championship lead by three points heading to the final three rounds.
At Barcelona, De Palo won race one and Deligny took race two in wet conditions, levelling the two title protagonists on points with four races remaining. At Hockenheim, Slater won race one after a safety-car restart charge, and Deligny won race two under red-flag conditions. At Monza, De Palo suffered front-wing damage at the start and fell to the back, while Slater attacked Giltaire for the lead in the closing stages to win and clinch the championship with a race to spare. Slater then won the season finale from pole, completing a dominant final-round double.
Slater entered the season as a favourite after his 2024 double F4 title, though his campaign was far from straightforward. He suffered two retirements in the opening four races, a disqualification at Imola, and a non-score at the Red Bull Ring that kept De Palo within striking distance throughout. The pair exchanged the championship lead seven times across the season. Slater ultimately took eight wins, four further podiums, and six pole positions, with his performance at the season finale proving decisive.
The ten-round season opened at Misano — the circuit's return to the calendar for the first time since 2020, replacing Mugello. Other venues included Spa-Francorchamps, Zandvoort, the Hungaroring, Circuit Paul Ricard, Imola, the Red Bull Ring, Circuit de Barcelona-Catalunya, Hockenheimring, and Monza.