“Grip” sounds like one number. On a real car, it changes with tire construction, temperature, pressure, surface, vertical load, and the direction of the force. The name on the sidewall tells you which tire is fitted; it cannot tell you how much cornering force that tire will produce on a particular road.
When the car brakes, accelerates, or turns, suspension and body forces change the load at each tire. A tire carrying twice the load usually cannot produce twice the lateral force. That load sensitivity is one reason a power increase can make a car harder to use without improving its balance.
Understeer describes the front axle running out of lateral grip first; oversteer describes the rear doing it first. Neither is a permanent personality trait. Tires, alignment, temperature, road surface, speed, steering, and throttle all move the balance around.
That makes comparisons harder than they sound. Name the tire and pressure, road, direction, temperature, and drive mode. Say whether the result came from a driver’s impression, a sensor, or a controlled test. “It feels sharper” can be a useful note; it just answers a different question from a repeatable lap or instrumented test.
On the Stinger, the same separation matters when looking at the JB4 log. Boost and RPM describe engine data; they do not describe the contact patches. The log and the tire note belong in the same garage, but they tell different stories.