It's not hard to guess.
There's no secret BMW's M division is planning to bring back the CSL (Coupe Sport Lightweight) moniker later this year as part of its 50th-anniversary celebrations. The last time there was a CSL model was back in 2003. That's about to change. And now, 20 years later, the 2023 M4 CSL is on its way and BMW has just very quietly revealed the first glimpses of the production car without camouflage.
This newly released video commemorating M's five-decade-long history is a combination of archive footage that shows the original M1 supercar at the race track along with a number of legendary cars from over the years. New footage was shot of showcasing the present day's M lineup, ranging from the M2, M3, and X5 M. But, if you look very carefully, you'll notice a different-looking M4 Coupe.
Although it's only the rear end, we can definitely see a yellow M4 in Frozen Metallic Yellow with a ducktail spoiler - just like on the original CSL. We knew the M4 CSL was going to have this design feature based on previous spy shots. Automakers sometimes like to hide in plain sight highly anticipated new models in videos such as this. They're very easy to miss and that's exactly the point.
Porsche, for example, did this back in early 2020 with the latest 911 GT3 for its Super Bowl commercial. It was unveiled not long afterward. Chances are, an M4 CSL reveal is imminent and we wouldn't be surprised to find out that sales will begin something this spring or summer. Customer deliveries could therefore start by the end of the year.
As a recap, the 2023 M4 CSL will feature an upgraded version of the standard M3/M4's 3.0-liter twin-turbocharged inline-six engine, which currently produces up to 503 horsepower in Competition spec. A new output of 540 hp is probable. Enthusiasts will be satisfied because it'll be rear-wheel-drive only but a six-speed manual is not expected. Instead, only the familiar (and excellent) eight-speed automatic will be on hand.
Other exterior features will include Y-shaped horizontal slats, a new front splitter, and a redesigned grille and headlights. The taillights will boast a new graphic. New wheel designs are also guaranteed. The interior receives a large CSL plaque mounted where the now-deleted rear seat would have been. Pricing is TBA but don't expect it to be less than $100,000.