The more rubber on the ground = more traction or grip for the cars e.g. more speed.
for maximum grip in the dry
It doesn't wet roads take traction away from racing cars. Race cars are fastest with slick tires, when the road is wet it forces them to use threaded tires to dissplace the water. If the racers want to slide easily around corners that the wet road would be helpful
I assume you mean tires - not tyers... So some race cars use Nitrogen for the properties that it has. It is noncombustible, has larger molecules and is absolutely dry.
Many European cars use 14 inch tires.
mainly on cars,bikes etc
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.
Friction doesnt not depend on the surface area...but the force of friction does! We cannot change the friction of a material but we can change the force due to that friction on another material in contact with it. Using this concept, racing cars have bigger tires to minimise the force of friction acting on them. They cannot change the friction of the road, so they change the resultant force on the tires.
slick tyres are used.
Mazda RX-8
My Diamante does
I think it is Nitrogen. The normal air mixture pumped into regular road cars is not efficient at high speeds and will lose pressure easily. If that happens there could be catastrophic consequence at high speed. That is why they use nitrogen If you pump nitrogen into the tires of your regular road car, you need not check tire pressure for 3 months.
Mostly motorcycle and cars manufacturing companies use Carbon fiber and Aluminum.
Street cars air (which is manily Oxygen, nitrogen), race cars nitrogen.