Quote Originally Posted by Mirek View Post
Sorry, but You didn't get what does cornering speed mean. Cornering speed doesn't depend on power (unless the car needs power slide to turn but let's say it behaves perfectly neutral) and it doesn't depend on traction either. The thing Lundefaret speaks about is lateral acceleration which the car can take in the corner. That depends on many factors, mainly radius of the corner, weight of the car, center of gravity position, lateral tyre grip level (depending also on tyre sidewall stiffness), suspension setup (mainly rollbars) etc.

It's very easily possible to have much more powerful car which is much slower in corners, e.g. Audi Qattro may have double power compared to Fiesta WRC but in the corner it is way slower (must slow down much more before the apex). The cornering speed is what changed dramatically through the years.
This is correct, but only for the apex speed that the car can carry in a corner. For the part of a turn after the apex, when the driver applies throttle to accelerate away, you can have two situations. Either traction limited or power limited. For sure for certain corners more power will result to higher corner exit speed (i.e. faster overall corner speed), but in other corners it will have no influence.