Tire preset and profile

[still otter]

The wheels in SP2 is a massive improvement over the SP1 one. But I find the stock settings are hiding it's potential to be amazing, and here's what I mean.
In my opinion the default setting for the friction circle strength as way too high. From what I understand it's about how peaky the initial grip is when it start to slip . At 100% the front end will not lose grip when turning the wheel too much while the rear just starting to slip to create some grip.
The end result is NON of the stock craft understeers in any condition.
And by lower the friction circle strength we can recreate this beautiful balance of over/understeer feel, which the stock setting really could 't do.

Even better we can create stock grip profile for different treads so it can suit better for it's need, such as street, rally, drift, slicks. which I'll explain how it works and for what setting.

Here's the discription of how tire grip works in Unity (from Unity Documentation)
From what I understand the friction circle strength setting is how much it slips to reach peak grip and power for how much more to reach the lower grip state (if it's the same as SP1s implementation)
And for that we can give different kinds of tire a stock tire profile:
Street: 30-40%/1.5-2
Slicks : 10-20%/2-3
Rally: 40-50%/1-2 ( higher strength and less power setting for more sideway sliding action )
Vintge: 30-40%/0.8-1 (lower power setting for non radial tire feel)