The car is modeled with attention to detail in its appearance and handles very well. After lots of tuning, I was able to get very comfortable with the car, and remained competitive against 95+/-5% AI strength, racing in the same car. The sound is beautiful, it's a blast to drive, and overall has been a great experience. I love this mod, and despite some difficulties learning the car and tuning it, it's been the only car I've driven for about three weeks.
Some criticism I have is that the rear wheels pop through the top of the car during compression, and even just normal acceleration, with the stock tune. The stock setup has the ride height at maximum and the spring rate towards a middle-soft setting. Not initially knowing this, I ended up lowering the car a lot, so my rear wheels were constantly sticking out of the car. To get the wheels to not stick out, I had to completely retune the suspension to be much harder in the rear, and raise the rear ride height to maximum.
Additionally, since the car is lighter in the front than the rear, I wanted to make the front overall spring rate lower than the rear. I had to go to extremes to do so, making the rear nearly as "stiff" as possible while the front nearly as "soft" as possible. The stock tune has the front end stiffer than the rear, which seems to mitigate oversteer and give stability during acceleration. This is okay, however I prefer adjusting oversteer/understeer and stability/agility with damping, anti-roll bars, and diff settings. I then try to match the car's weight distribution to the front and rear spring rates, and generally the dampers as well. With the way the tuning sliders are, this was pretty difficult, as the sliders don't accurately represent the real settings of the car.
In order to look at the actual spring and damping rates, I had to use the Track Engineer application. The tuning sliders look misleading, because even when the rear spring rate is as high as possible in the tuning menu, it can still be a lower value in Hz than the front, as seen through the Track Engineer application. The damping sliders are also misleading because it can look as if the front rebound rates can be much higher than the rear, but in all truth, the rear rebound settings adjust in much larger increments than the front. The front bump dampening can also be higher than the rear when the rear is set to "3" and the front is set to "2", which is pretty confusing.
Essentially, I feel the tuning sliders for spring rate could be more adjustable, some of the sliders could be adjusted in smaller increments, and for the sliders to accurately represent the actual spring rates and damper settings. Without the Track Engineer app, I don't think I could've tuned this car accurately.
Regardless, once all that was worked out, the car has been fantastic. I can't wait to learn the Targa Florio in this thing. Thank you for such a great mod!
I have been re-making physics on the "C" version and the aero is closer to what you describe. Future update will eliminate the non-C version completely.