I believe you are indeed mixing something up, Ice. GP1 holds the road like it's glued and will only slide if you'll pull the handbrake. Understeers a bit, IMO, but it's the best R* could do to mimic how it should perform, probably. Very nice and unique sound included. If you want to describe the handling in one word: smooth, that's it.
Ooh dang, I stand corrected.
I need to reacquaint myself with GP soon & no driving the Infernus this time lol.