Mercedes re-entered Formula One as a works constructor in 2010 by purchasing the Brawn GP team. Early results were modest — fourth in the Constructors' Championship in both 2010 and 2011 without winning a race. The breakthrough came in 2012 when, rebranded as Mercedes AMG Petronas F1 Team, Nico Rosberg took the team's first pole position as a works outfit since Juan Manuel Fangio in 1955 and then won the Chinese Grand Prix — the first Mercedes victory in 57 years. The 2013 season brought three wins, and Lewis Hamilton joined from McLaren. The introduction of 1.6-litre V6 turbo-hybrid power units for 2014 handed Mercedes a decisive technical advantage that would underpin eight years of Constructors' dominance.
In 2014, Rosberg won in Australia and Hamilton achieved a grand slam in Malaysia — leading every lap from pole with the fastest race lap — as the team produced 1–2 finishes in Bahrain, China, Spain, Monaco, and Austria. Hamilton clinched the Drivers' title in Abu Dhabi, finishing 67 points ahead of Rosberg. Mercedes ended the year 296 points clear of nearest rival Red Bull Racing, with 18 pole positions, 16 wins, and 11 1–2 finishes from 19 races. The average winning margin over the nearest non-Mercedes car was 23.2 seconds.
The dominance continued in 2015, with 18 poles, 16 wins, and 12 1–2 finishes in 19 races and an average margin of 19.7 seconds. Hamilton won his second consecutive Drivers' title at the United States Grand Prix. In 2016, Mercedes won 19 of 21 races and secured 20 pole positions — a 95.2% strike rate, the highest ever in a single Formula One season. Rosberg claimed his only Drivers' Championship by five points over Hamilton before announcing his retirement.
Valtteri Bottas replaced Rosberg for 2017. Mercedes won 12 of 20 races and took the Constructors' title for a fourth consecutive time; Hamilton simultaneously became the first British driver to win four world championships. In 2018 Hamilton won all 11 of the team's race victories, and Mercedes became only the second team in Formula One history to win five consecutive Drivers' and Constructors' titles — a feat previously achieved by Ferrari between 2000 and 2004.
In 2019 the team opened with 1–2 finishes at the first five rounds, and by the summer break had won 10 of the opening 12 races. Both titles were retained for a sixth year. For 2020, Mercedes debuted a Dual-Axis Steering system; Hamilton missed the Sakhir Grand Prix after testing positive for coronavirus and was replaced by George Russell, yet both championships were still won.
The record-extending eighth consecutive Constructors' title came in 2021 despite the team losing the Drivers' crown for the first time in the hybrid era. Hamilton led the Abu Dhabi Grand Prix and appeared set for his eighth world title before a late safety car restart — handled controversially by FIA race director Michael Masi — allowed Max Verstappen to pass Hamilton on the final lap. Hamilton finished the championship eight points behind Verstappen, with Bottas third. Mercedes filed an intention to appeal the race results but later withdrew it.
Major regulation changes for 2022, reintroducing ground effect, ended the streak of clear Mercedes supremacy. A radical sidepod-less concept and aggressive porpoising blunted the team's pace. George Russell replaced Bottas and took the team's only win of the season at the São Paulo Grand Prix, with Hamilton second; Mercedes finished third in the Constructors' Championship. The 2023 season again saw no victories — the first winless year since 2011 — though the team finished second in the Constructors' standings. A revised concept for 2024 yielded victories at Austria, Britain, Belgium, and Las Vegas, but Hamilton activated an exit clause and signed for Ferrari from 2025, with Mercedes junior Kimi Antonelli named as his replacement.