Talk:PORSCHE 911 GT2 RS/@comment-2605:E000:60CE:1700:786C:331B:3EAA:D003-20181009021518/@comment-32545704-20181013044138

Ok, this could explain it...

https://www.topgear.com/car-news/supercar/9ff-porsche-gt2-gt2-hits-240mph-2009

Although I'm not sure how that would qualify as the "stock" car.