The most notable design feature is the large vertical kidney grille which is inspired by the BMW 328 and 3.0 CSi respectively.

Other notable design features of the concept were a pronounced duck-tail spoiler at the rear, thin wing mirrors made from a single piece of aluminium and open headlamps, which have no covering over their 3D lighting elements and are instead embedded into the body of the car.

[3][4] On 26 May 2020, BMW announced that the G22 4 Series would be unveiled online in June 2020 by posting a teaser image of the range-topping M440i model.

[6][7] On the online unveiling, BMW announced that the worldwide launch of the G22 4 Series would be held in October of the same year.

[8] At the end of September, BMW unveiled the convertible version of the new 4 Series (G23), with the same technology and engines as the coupe.

[9] The launch models consist of the diesel engine 420d, 430d, and M440d, the petrol-engined 420i M Sport and 430i and the mild hybrid M440i xDrive.

This power can be supplied to the car’s 12V electrical system or deployed to assist the combustion engine to help reduce CO2 emissions and boost fuel economy.

A previously unavailable combination of the 430i with xDrive in their Gran Coupé body will be available as a MY23 version becoming the first 2023 model other than their "iX" electrified SUV.

The M Sport models come with a modified gearbox which features faster shifts and a new "Sprint" driving mode.

Most of the interior is carried over from the G20 3 Series upholstered in SensaTec faux leather with front sports seat being standard.

The iDrive 7.0 has over-the-air updates for the navigational maps and operating system, and features a voice-controlled digital assistant.