For maximum grip.
Because slick tires are made of softer rubber.
No not fully slick
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.
Yes the new tires are faster and do not slip.
About 1500 dollars a set.
slick tyres are used.
Yes.The reason why racing truck have slick because slick tire give them better cornering. Most auto racing ruled by FIA are only use slick tires.