BMW 1 Series (F20)

5-door hatchback (F20)

The F20 five-door hatchback was the first of the F20/F21 body styles to be released. It was unveiled in 2011 at the Frankfurt Motor Show^[12] and then the Auto Guangzhou motor show.^[13]

Early models included the 116i, 118i, 116d, 118d, 120d.^[14] In 2012, the 125i, 125d and 116d EfficientDynamics Edition models were introduced.^[15][16] In July 2012, the 114i and M135i were introduced, followed by optional all-wheel drive (xDrive) for the 120d and M135i models. After the introduction of the facelift (LCI) models in 2015, the M140i replaced the M135i, which upgraded the engine to the BMW B58 and included various cosmetic changes.^[17]

3-door hatchback (F21)

The vehicle was unveiled at the Auto Mobil International Leipzig 2012.^[18] The exterior styling was overseen by Nicolas Huet.^[19]

The launch models consisted of the petrol-engined 114i, 116i, 125i and M135i models, and the diesel-engined 114d, 116d, 116d EfficientDynamics Edition, 118d and 125d models. The inline-six M135i model was unveiled in the 3-door body style at the 2012 Geneva International Motor Show.^{[20][21][22][23][24]} From 2016, the M140i replaced the M135i, with same engine and options as F20.^[25]

Petrol

Official specifications are as follows:^[26][27][28]

Diesel

Official specifications are as follows:^{[28][29][30][31][32]}

2015 facelift

2015 facelift

The facelift ("LCI", "F20N") changes were unveiled at the 2015 Geneva International Motor Show on 5 March,^[37] and began production later that month.^[38] Changes included:

• Revised bumpers, tail-lights and LED directional headlights ("Adaptive Headlights")^[39][40]
• Diesel engines changed from 4-cylinder N47 to 3-cylinder BMW B37 (116d model)^[41] and 4-cylinder BMW B47 (118d, 120d and 125d models).
• 116i and 118i models changed from 4-cylinder N13 engine to 3-cylinder B38.
• 120i model introduced, powered by the 4-cylinder N13 engine.
• M135i power increase of 5 kW (7 hp)^[42]

2016

• M140i model replaces the M135i, powered by the 6-cylinder B58 engine.^[43][44][45]
• 120i model changed from 4-cylinder N13 engine to 4-cylinder B48.
• 125i model changed from 4-cylinder N20 engine to 4-cylinder B48.

2017

• New M Sport Shadow Edition trim level.^[46]
• New exterior colours: Seaside Blue and Sunset Orange.
• New alloy wheel designs.
• Revised dashboard design, interior switches and instrument cluster.
• iDrive upgraded to version 6.0.

British Touring Car Championship

The F20 raced in the British Touring Car Championship, from 2013 to 2020. The BTCC BMW 125i M Sport entry won the Drivers' title in 2014 and 2018 with Colin Turkington (Turkington also winning the Independent Drivers' title and WSR the Teams' titles both outright and for Independents in 2014) and also won the Constructors' Championship and Teams' Championship every year from 2016 to 2018.

Carl Boardley came Runner-up in the Jack Sears Trophy in a 125i in the 2020 Season.

The car was later used as a test car for the Hybrid technology that was introduced for the 2022 Season.^[47]

TCR Touring Car Racing

A 125i briefly raced in the 2021 Touring Car Trophy Season.^[48]

BMW 1 Series Supercup

In 2022, the BRSCC introduced the BMW 1 Series Supercup for F20 and F21 models.^[49]

The series was merged with the BMW Compact Cup for the 2025 Season.^[50]