1.   These tyres are normally used for light and heavy trucks while only asmall percentage is used for other types of vehicles.

2.   Grooved compound tyres will be used instead of slick dry weather tyres and the rules on brakes will be changed enabling stopping distances to be longer.

3.   Protestors used burning tyres, chopped down trees and various other objects to close off the roads, witnesses said.

4.   The FIA has ruled that the cars must use grooved tyres to slow them down next year.

5.   The manufacturers said investigations had revealed that Japan and South Korea exported used tyres to Malaysia as a way of disposing of them.