I just got back from an errand, yes I'm online, but, without any insult, I don't believe there is anything to discuss. The car is in it's default settings, even the LSD for the most part. The only thing I did, was lower the DeAcceleration setting to 5.
The car stock, is over 600pp, so the only thing you do to it, is power limit it to 600pp.
No parts or anything installed.
93.3%
567hp
1140kg
Rear Downforce at minimum (You might go even faster without a rear wing, and adding more power, since you have access to aids)
So my recommendation, is find a tune for this car that exists to go even faster. I believe Praiano has one.
Outside of that, as Assassin mentioned, I do not promote SRF. I don't ever use it, unless I feel the need to rise to a challenge or prove a point, like the GTR '07 guy for example. Here I used it, only to find you a car that can beat 1:25's under your conditions. The Enzo is close, the McLaren can do it. I was just offering a starting point for you.
From here, buy the car, get comfortable with it, try some tunes and practice the track.
Find a way to maximize the SRF crutch.
SRF is a cheap way to increase lap times, because, by my understanding and experience, it artificially increases tire grip instantaneously beyond the maximum grip regularly achieved by Racing Soft tires. It's impossible to do in real life, and can only be done by in game physic gimmicks. It doesn't help people learn to drive properly, and I very rarely join rooms that even allow it. Even the rooms that do allow it, I still refuse to use it. I don't recommend anyone use it, because it will hurt you in the long run, if you actually want to progress your level of skill in this game.
Good luck with your league and I hope the McLaren works out for you.
Edit: As for your PM, I don't need anything in return. The setup I posted above, is the exact set up I used to run the lap pictured. I'm sure you can run faster with Praiano's tune or another available tune.
I'll take the ZZII for a spin real quick, but I really don't enjoy driving with SRF, it takes far too much work to drive this way.