According to BMW Blog, the newcomer is codenamed ZA2. The cited publication expects the all-electric M4 to launch after 2028.
With the NA2 i4 coupe and NA3 i4 convertible believed to enter series production sometime in the latter half of 2028, the M4 should hit dealer lots by decade's end.
BMW Blog does not mention a convertible-bodied M4. If there's a case to be made for such a vehicle, its codename should be ZA3.
If you're curious about ZA1 and ZA0, those internal designations are reserved for the all-electric M3 Sedan and M3 Touring.
G84 is what BMW calls the next generation of the internal combustion M3, which – according to Bimmerpost – is expected to start production sometime during July 2028 for model year 2029.
In stark contrast to the plug-in hybrid M5, the next M3 is a mild hybrid with twin-turbo I6 oomph.
Frank van Meel, the big kahuna at BMW M, recently confirmed that the S58 will be updated to comply with the Euro 7 standard.
Coming into force in 2026, the Euro 7 standard includes non-exhaust pollutants emitted by the vehicle's braking system and tires.
Overall, the new regulation will increase the prices of internal combustion, electrified, as well as full-electric vehicles.
Derived from the M4 Coupe, the limited-run 3.0 CSL is the most powerful S58-engined Bimmer to date, packing 560 pferdstarke or 553 mechanical horsepower.
We know the S58 can take plenty more, and in combination with a 48-volt system, 600-something ponies may be on the menu for the next-generation internal combustion BMW M3.
As for the all-electric M4, the sky is the limit. BMW did confirm a megawatt of muscle for the heavily-anticipated Neue Klasse platform, which is rolling out in 2025 with the second-generation iX3.
One megawatt is 1,360 metric ponies or 1,341 mechanical ones, but we shouldn't hold our breath for that kind of maximum output in the M4.
If the Neue Klasse will underpin 5 Series and larger vehicles, it goes without saying that BMW cannot max out the Neue Klasse in the M4 to the detriment of said vehicles.
A clear hierarchy is crucial in this regard, let alone when you're competing against Mercedes-Benz AG and Audi AG.
At the present moment, BMW is busy putting the finishing touches on the iX3 in preparation for a model year 2026 rollout.
Initial production will be handled by the Debrecen assembly plant in Hungary.
The all-new i3 should follow suit in late 2026 for model year 2027. Both the zero-emission M3 and M4 are believed to feature all-wheel drive by default, although we don't know if the M division will go with two drive units, three motors, or a quad-motor setup.
