F1 Chronicle on MSN

Why do F1 cars need pit stops?

F1 cars need pit stops primarily to change worn-out tires to maintain high speeds, as tires cannot last a full race. While ...
It's common to see cars with their windshield wipers pointing up when snow is expected. But why do drivers do this and is it ...
Many drivers lift their wipers before a snowstorm to keep them from freezing to the glass. But does it actually help — or could it cause damage instead.