Before I even saw this I made my own versions of the F094/S, and other F1's. I know you are curious so here are my results so that you can make better hybrids.
The first one (f094/S) I made has weight reduction to 1,012lbs, NA Tune (Level 1) to 983hp and, as an experiment I put on 787B T8 tires front and back.
The T8's dont have 1/2 the grip the regular F1 medium tires do. I was worried that this change would make the F1 have the 787B's actual wheels and tires, but it doesnt change the looks of the wheels at all, just so you know for the future because I know you cant test it.
This car is unbelievably fast!!! WAY faster than I thought because I only wanted to do a mild upgrade and not ruin the cars dynamics. Well, unless you have the reflexes of a cat you will be hard pressed to keep this thing on the track at all times. Unless you drive very conservitavely. PS This is after putting back the Medium F1 spec tires because the 787B T8's had NO grip.
My other F094/S I didn't do anything except for put in the Zonda Race Car 7.0L V12. This engine has no problem catapaulting the little F1 along the track and up hills. But at 670hp it isn't as fast as it used to be. Again, this was an experiment, and I found that the Zonda V12 doesnt have as smooth of a power band as the F1's stock V10 so it doesnt keep a predictable line through the turns. Other than that, it is very fast and easy to control.
I also made an F686/M with the Oreca Viper V10. The results weren't very different from the F094/S with the V12.
I did a slight turbo upgrade on the F687/S (111%) and it put me at 1,008hp it is easy to control and just a bit faster on the straights.
I would love to tell you about other carsm I have done, but I think you guys are going to think I am rambling.