By Reuters Staff 3 Min Read TOKYO (Reuters) - Honda Motor Co Ltd unveiled on Thursday a limited batch of its flagship Legend sedan this week, becoming the world’s first carmaker to sell a vehicle equipped with certified level 3 self-driving technology. Lease sales of the level 3 Legend would be limited to 100 cars at a retail price of 11 million yen ($102,000). But Japan’s No.2 automaker is stepping up its game in self-driving technology as global competitors aim for fully autonomous vehicles. WHAT EXACTLY IS LEVEL 3? There are different levels of automation, from levels 0 to 5, according to the Society of Automotive Engineers and most automakers. here