Omdat het toch al weer een dag geleden is.........
M2 CSL met S55 blok rumours;
FWIW:
"I have heard that an M2 CSL is planned. From someone who's an engineer at BMW engine development."
"Ich hab gehört das ein M2 CSL geplant ist. Von einem der Ingenieur bei der BMW Motorenentwicklung ist."
(source: here)
From someone who claims to have spoken to a test driver and also claims that he knew already for approx. 6 months that CF wheels were in the works for the M4 GTS:
"The S55 is already a long time inside the F87!
It's lapping the Nürburgring Nordschleife already for more than a year!"
"Den S55 gibt es schon lange im f87!
Der dreht schon über ein Jahr auf der NOS seine Runden!"
(source: here)
"The M2 sporting the S55 was more than 8 seconds faster than the M4 on the Nürburgring Nordschleife!"
"der m2 mit s55 war auf der nos über 8 sekunden schneller als der m4!"
(source: here)
From the CAR interview with M2 project leader Frank Isenberg:
"The big question, of course, is how the M2 compares with M4, and which Isenberg prefers. «M2», he answers without hesitation. «I like the smaller cars. The M2 might even be faster through a tight slalom.» Or around the Nürburgring. Officially, the M2 is good for a 7min 58sec, the M4 a 7min 52sec. The 1M did 8min 15sec."
Quick math: 07m52s (M4) minus "more than 8s" = 07m43s or 07m44s for the M2 sporting the S55 engine. That's close to Cayman GT4 times (07m40s to 07m42s).
Bron; Artemis Bimmerpost