Let's talk about the M5 first. Already leaked from the rear, the sedan carries internal codename G90 (as opposed to G60 for the 5 Series four-door sedan). The big news is the return of the station wagon, dubbed Touring in the Bavarian automaker's vernacular. Both the G90 and G99 will receive a plug-in hybrid V8 setup with more than 700 horsepower on deck.
The internal combustion engine and plug-in hybrid part are obviously lifted from the XM sport utility vehicle. A bit of an ugly duckling for some, the XM puts out 738 horsepower and 738 pound-feet (1,000 Nm) in Label Red flavor. This version carries a sticker price of $185,000 (sans destination freight charge).
Turning our attention back to the M4 CS, what's there to look forward to? For starters, a lower starting price than the M4 CSL. It's limited to 1,000 units worldwide, of which the US market will snare a quarter. Not available to configure on the automaker's website, the M4 CSL is an eye-watering $140k (excluding $995 for the destination charge).
Production of the M3 CS is limited by time rather than a specific number, with BMW estimating to finish approximately 2,000 examples of the breed. Referred to as G80, the M3 in CS specification develops 542 horsepower and a Competition-like 479 pound-feet (650 Nm). Those numbers are shared by the M4 CSL. In addition to their body styles, the other big difference between the G80 M3 CS and G82 M4 CSL is that the 3er comes with M xDrive AWD.
This, in turn, means that we can expect all-wheel drive with driver selectable rear-wheel-drive mode for the 2025 model year BMW M4 CS. Quite a few carbon-fiber bits and pieces are on the menu as well, along with carbon-ceramic brakes and a CS-specific radiator grille. Under the skin, the M4 CS will differ from the Competition by means of stiffer engine mounts, an upgraded exhaust, and better aero.
Oh, and by the way, remember that we're dealing with a facelifted model. At the least, the M4 CS will don redesigned headlights. Also remember that BMW reportedly intends to increase the Competition's output to 525 metric ponies (518 mechanical ponies) for MY25. With a bit of luck, the M4 CS may be pushed to a 3.0 CSL-matching 560 ps (553 hp).