Upgrades over the standard BMW 4 Series include an upgraded engine, suspension, exhaust system, brakes and weight reduction measures including increased use of carbon fiber, such as on the roof of the car.

[4] As per its E92 predecessor, the roof of the coupe model is constructed from carbon fiber (except if the optional sunroof is fitted).

BMW claims this technology has been used so that the well insulated cabin can reduce road/wind noise but still provide the driver with the sporty sound of the M powered engine.

Like its hardtop counterpart, the F83 M4 uses carbon fiber reinforced plastic to lighten and stiffen the car.

Starting from the 2019 model year (production from 07/2018 onward) BMW removed the carbon fiber driveshaft so as to be able to fit an Otto Particulate Filter (OPF), necessary to comply with WLTP emissions regulations and this also meant that the M Performance Exhaust was no longer able to be offered on these cars by BMW.

BMW also re-tuned the electronic differential and the Dynamic Stability Control to match the upgraded hardware.

Gloss black trim is added to the kidney grille, side gills, and model badge on the trunk.

[17]BMW introduced the M4 GTS concept in August 2015 at the Pebble Beach Concours d'Elegance.

The M4 GTS is powered by the same 2,979 cc (3.0 L; 181.8 cu in) twin-turbocharged straight-six engine as in the standard M4, but the power output has been raised by 51 kW (69 PS; 68 hp) to 368 kW (500 PS; 493 hp) at 6,250 rpm and 600 N⋅m (443 lb⋅ft) of torque at 5,500 rpm largely due to a nozzle water injection system that is the first to be used on a production automobile in almost twenty years.

The M4 GTS features new OLED taillights (a BMW first), a stripped and weight-reduced interior with a full roll cage (half roll cage for North American markets), fiberglass cabin to trunk divider, removed soundproofing material, titanium exhaust system, a manually-adjusted three-way suspension by KW suspensions, and multi-way adjustable carbon fiber splitter and wing that can add up to 63 pounds front and 210 pounds rear downforce at 186 mph.

The M4 DTM Champion Edition uses the engine from the M4 GTS with 368 kW (500 PS; 493 hp) 600 N⋅m (443 lb⋅ft) and water injection.

This is done in part through the use of "compacted natural fiber" interior door panels with fabric latch pulls as seen in the M4 GTS, light weight M sport seats, and the removal of the central arm rest.

These cars came in Macao Blue, Mandarin II Uni and unique for the UK market a matte finished Frozen Dark Grey and the star-spoke 20-inch wheels came in bespoke Orbit Grey finish.

[32] The more notable upgrades for the G82 M4 is a 35 kW (48 PS; 47 hp) increase over the previous M4, as well as adopting the twin-kidney grille from the 4 Series.

Compared to the standard M4, the M4 Competition increases power output by 22 kW (30 PS; 30 hp) to a total of 375 kW (510 PS; 503 hp) and torque is increased by 100 N⋅m (74 lb⋅ft) to 650 N⋅m (479 lb⋅ft), and it is offered exclusively with an 8-speed M Steptronic Sport automatic transmission.

The BMW M4 CS Base MSRP starts at $123,500[40] The CS also arrives with a specially tuned chassis that features revised wheel camber settings and anti-roll bars intended to improve handling; a cast aluminum strut brace increases torsional rigidity.

In October 2020, BMW released their collaboration with Kith, a lifestyle brand centered around fashion, for the G82 generation M4.

Production was limited to only 150 units worldwide and they have a slight premium over the basic form 2021 BMW M4.

[44] At the 2017 Frankfurt Auto Show, head of BMW's M division Frank Van Meel announced that the CSL nameplate would be making a return, replacing the GTS in the performance model monikers.

[46] Changes include significant weight reduction of around 200 lb (91 kg), hence the CSL name, which stands for Coupe Sport Leichtbau (Lightweight Sport Coupe), a large front carbon fiber front splitter, a ducktail rear spoiler, more horsepower, 543 hp (551 PS; 405 kW).

Fitted with 19-inch M forged wheels on the front axle and 20-inch wheels on the rear axle featuring a double-spoke design, which are being offered for the first time in the colours Orbit Grey Matt and Gold Bronze matt.

In addition, a similarly limited number of edition vehicles of the BMW M4 Coupé are being produced for the Chinese automotive market and available in the exterior paint finishes Fire Orange and Stratus Grey.

This colour selection relates to the fact that the anniversary of BMW M GmbH is being celebrated in China in the Year of the Tiger.

The M forged wheels on these vehicles are finished in matt Orbit Grey in conjunction with the Fire Orange body colour and in matt Gold Bronze in conjunction with the Stratus Grey exterior paint finish.

For the 50 Jahre Edition vehicles based on the BMW M4 Coupé, door sill panels are bearing the lettering “Edition 50 Jahre BMW M”, a metal plaque on the centre console with the lettering “M4 Edition 50 Jahre BMW M” and a corresponding imprint on the headrests of the standard M sports seats and the optional M carbon bucket seats for driver and front passenger.

The BMW M4 GT4 is a competition version of the road car, sharing the 3.0 L turbocharged straight-six engine and 7-speed dual clutch transmission.

[58][59] Chassis are homologated under the SRO GT4 category, aimed at amateur drivers, with the engine trimmed to 317 kW (431 PS; 425 hp) in line with the Balance of Performance regulations.

[60][61] An Evo version of the M4 GT3 was announced at the 2024 Nürburgring 24 Hours, with the car featuring new side mirrors, new head- and taillights and larger air inlets, while also being more reliable and easier to drive.