NASCAR tires vary in compounds, soft, or hardness, by the track they are to be used on, and what for. They used to make a super soft tire, called "gumballs" just for qualifying. Super sticky, but wear out fast. You got better traction for faster qualifying times, but only for a few laps. Ultimately you don't want to make the tire any harder than you have to. The softer, the more grip. But, then, heat comes into play, and tire pressure, sping rate.........Then, if you run some laps, get a caution, then race again with changing them, they react totally randomly because they have been heated, and cooled, which makes them harder. Funny thing, tires. Hard to explain. Softer=better grip. Too soft=heat=slip. Hard=lots of slip=too low tire pressure to compensate=unsafe tire. That's about the best I can do.
Firestone tire is a NASCAR sponsor. Some of the cars use firestone tires other cars use NASCAR tires. Firestone also sells NASCAR tires in addition to their own brand.
They fill their tires with nitrogen.
The innate soft texture of the soft rubber tires differentiates the soft rubber tires from their closely-related hard rubber tires.
For maximum grip.
NO
Yes the new tires are faster and do not slip.
About 1500 dollars a set.
Yes. Coca Cola is the official soft drink of Nascar.
1995
Soft tires are better because they are smooth on the track which gives them more speed.
The biggest tires that are common have about an 29" outer diameter.
Probably sell them as souvenirs.