[crypticc]

On dry roads your ability for outright grip under power is based on the coefficient of friction of rubber on tarmac, with 1 being the max without downforce. In fact because it is directly proportional to the force, and the force is inversely proportional to the area of the tyre which spreads the lead, then in a model that ignores the effect of rubber bonding with tarmac...adding more tyre width actually doesn't change available grip!!!!

Width helps behaviour as the slide develops though because the sheer forces between the two surfaces increases! A wider tyre might hang on longer than a narrower tyre but will be snappier and once it let's go the wider tyre has more traction. But until then they're the same.

This is actually mostly independent of the car but is dependent on the tyre, which as we know is the single most important component on our cars except ourselves


When the road is wet forget all of the above. If wet behaviour is your target get an Audi or a GTR instead as that coefficient of friction cross from 0.8 or whatever down to 0.2 or 0.3 regardless of whether you have a Ferrari or a 2CV. The only difference being the amount of torque available to break that sheer force and to get you into trouble.