McLaren isn’t sitting pretty after unveiling the Senna hypercar last month, especially not when there’s another hypercar that’s waiting to be developed. We already know a few details about the car, including its codename, “B23,” and the fact that it will belong in the British automaker’s Ultimate Series lineup, joining the P1 and the Senna in that rarefied category. The BP23 is scheduled to debut sometime this year, but we’re getting an early look at it thanks to a video someone took when stumbling upon what could be it in the wild. In fairness, some suggest it could be a 720S testing winter tires or a 720S on a BP23 chassis. Oh, the excitement... check out the video below.