Sumitomo Rubber Industries Ltd. (TYO:5110) recently announced that it has started supplying its Dunlop-branded Grandtrek AT23 and Grandtrek PT5A tires as OE for the newly launched Toyota Land Cruiser 300. On top of providing the durability, reliability and other such basic performance metrics sought after in Land Cruiser tires, the AT23 and PT5A incorporate a new tread compound that offers…