MotoringFile Most liked posts in thread: F56 MINI Engine & Transmissions Unveiled – A Quick Look at the Numbers

The article does say that

"The front camber has been increased compared with the regular MINI John Cooper Works, so that the performance potential of the sports tires – which differ significantly from road tires – can be used to full effect"​

It would be a fair assumption that they were using the GP2's stock tires, which are the Kumho Ecsta V700, barely street legal with a wear rating of 50 and not recommended in the rain.

http://www.tirerack.com/tires/tires.jsp?tireMake=Kumho&tireModel=Ecsta+V700
MotoringFile » Archive » JCW GP Buying Guide, Standard Equipment & Options List

 

Throw those same tires on a Cadillac then tell me how tires are the only thing that increases performance.....

 

Why wouldn't swapping tires on a Cadillac increase its performance?

This one ran "factory-spec street tires", probably not as extreme as the Kumho V700 and would have done even better if it did:
Cadillac CTS-V Breaks Nurburgring Record! - Road & Track

 

As I stated the "only" thing. Ppl in here act like tires make all the difference. Just saying. And besides that I was just trying to think of the most boat like car quickly. Nothing to do with Cadillac in particular.

 

WOW....had no idea they were putting tires like those on a GP2. That indeed would more than allow a much quicker lap time.