Spinning tires at the starting line actually slow the vehicle down; while the tires are spinning the vehicle isn't going anywhere. The idea of a race is to be the quickest one to the end of the track.
Spinning tires heats up the rubber, making it more tacky and better able to grip the track.
Wider tires are better for high speed bends and turns.
Yes. But it will likely only melt a thin film of water, which will freeze and become ice the minute the tire stops spinning. Also, by stepping on the gas and spinning the tires rather than ease your way out of the snow, the tires have less traction. Reason is when the tires spin, you have kinetic friction between the tire and the snow. If the tire is rolling over the snow, you have static friction. Static friction is greater than kinetic friction. Point being: don't spin your tires if you want to avoid getting stuck.
Depends on the track mainly but cutting proper grooves in your tires is a good start
I just got one for $70
Walking into a tire store is often very confusing for those of us who buy tires quite seldom. Many people don't care about tires at all. They just try to buy any of them in order to get at the wheel of their vehicles as soon as possible. However, there is a saying of a famous tire manufacturer Michelin: “So much is riding on your tires”. That's really truthful. Cheap tires can damage a great car and, vice versa, great tires can do wonderful for a very shabby vehicle. There are a few things to avoid when shopping for discount tires. One thing is to avoid no name tires, tires that you have never heard of. Also, avoid tires that have poor warranties. You should look for tires that have replacement warranties such as road damage and vandalisim warranties. Several tires come with lifetime warranties that include everything but sidewall damage.
Drag cars have large rear tires with no tread to grab more traction on the track surface. The rear tires also have lower air pressure so when the energy is transferred to the rear tires (as torque) the tires ripple and even more of the tire touches the track for more traction.
Auctomatic Stability Control. It helps to keep the tires from spinning on slippery surfaces. If you push the button it will disable and you can spin the tires on a slick surface if you wish.
To avoid accidents when the airplane is landing.
If you are talking about Caution laps during a race, then its to keep their tires at a hot temp to grip the track better during restart.
You should avoid having cheap motorcycle tires on your bike to prevent possible crashes and lower performance. Cheap tires can easily pop and put the rider in danger.
Yes. Lift the front tires. The rear wheels are free-spinning.