Originally Posted by M3_WC
Isn't it like 27+ seconds quicker around the ring.
No, it's not. The E92 M3 was timed at 8.05 on street tires. Haven't seen the 991 time but I can guarantee you it isn't 7.38. However, it is still likely about 20 seconds faster which is still a lot, though it will be interesting to see how the f82 does as that's a fairer comparison with regard to age.
The P-car should still edge it, but I'd bet it's down to around 12 seconds or so difference which is pretty good for something with four seats and a trunk.