Honda's CEO said it was "difficult" to explain why Nissan would make a good business partner. Analysts believe that Honda's ideal partner for a merger would be a more "healthy and financially sound company.

Japanese automakers Honda and Nissan have announced plans to work toward a merger that would form the world's third-largest automaker by sales, as the industry undergoes dramatic changes in its transition away from fossil fuels.

Japan's Honda and Nissan said Monday they had embarked on formal merger talks that would create the third-largest car manufacturer globally with sales of as much as $191.4 billion and more than $19 billion profit.