No car holds that record, because there isn't one.
Ah, the 911 GT2, which is unofficially slower than the Radical SR8, NIO EP9 and McLaren P1 LM. Still, it sounds like a completely stock, unmodified car with factory optio...
... ah, there it is.
Who cares if it's a one-off or they made 30 million of them?
Yep. I mean the internet would argue itself into a foamy puddle about it, but it doesn't matter. There are no 'Ring lap records for anyone to go out and beat, because there's no official timing and no official records... and no rules. It doesn't matter if it's a time attack car based on an LMP1 at great expense, or the next hot hatch, and it doesn't matter if they use remoulds from the local tyre shop or million-pound slicks developed specifically for the car to do track days.
Not really. It's the job. I don't know any of the guys at sport auto to be buddies with them, but if they're motoring journalists (and they are) they need to be objective about the cars they test. They do go to a lot of trouble to standardise their particular tests and have a robust rule set to it. Including the road-legal, road-registered rule.
But hey, let's all take modified pre-production cars run by manufacturers in closed sessions for cars they need to advertise based on their laps as fact and ignore anyone independent.
We've covered all of this time and again. 'Ring laps are smashing and all, but they're just publicity material. No-one should put any stock in them whatsoever (even if they were 100% the truth, how relevant do you think it is to Joe Q. Shmee who spends £5m on a car that a professional racing driver can go "X" fast around a random track? Does it mean they can too? Nup) and certainly no-one should be arguing that one car's lap should stand and another shouldn't because it was modified in the wrong way for their personal taste...
Let's remember your original statement on this, that I was responding to:
There isn't a record for production cars. The only thing close to it is the sport auto test, that uses tyres actually on the road-legal, road-registered car. Nobody's time counts for any record, regardless of whether they have slick tyres or not, because there isn't a record for it to count to. That includes the 919 - as we covered in our article on the 919 going faster than the lap record, but not setting a new one.