noone1:

Since when do they engine dyno cars?

Stick track day tires on your track day car and the number stands. Why would you want to track your car with crappy street oriented tires? We already know that the latest generation compounds are a massive improvement. No reason to think they won't be available for customers.

IMO, the car does as they said it would initially. 1.06.3 is as quick as the 918.

They have been dynoing cars for the last years.

The "special" Cup tires are not available to the market (pre-production). Maybe at a later stage. Of course, using such special prototype tires improves the lap times - but it does no tell us anything about the qualities of the car. I.e. useless test Smiley Only good for the marketing...