Japanese automakers Honda and Nissan will attempt to merge and create the worlds third-largest automaker by sales as the industry undergoes dramatic changes in its transition away from fossil fuels.The two companies said they had signed a memorandum of understanding on Monday and that smaller Nissan alliance member Mitsubishi Motors also had agreed to join the talks on integrating their businesses. Honda will initially lead the new management, retaining the principles and brands of each company.Following is a quick look at what a combined Honda and Nissan would mean for the companies, and for the auto industry.An industry shakeupThe ascent of Chinese automakers is rattling the industry at a time when manufacturers are struggling to shift from fossil fuel-driven vehicles to electrics. Relatively inexpensive EVs from Chinas BYD, Great Wall, and Nio are eating into the market shares of U.S. and Japanese car companies in China and elsewhere.Japanese automakers have lagged behind big rivals in EVs and are now trying to cut costs and make up for lost time.Nissan, Honda and Mitsubishi announced in August that they will share components for electric vehicles like batteries and jointly research software for autonomous driving to adapt better to dramatic changes in the auto industry centered around electrification. A preliminary agreement between Honda, Japans second-largest automaker, and Nissan, third largest, was announced in March.A merger could result in a behemoth worth about $55 billion based on the market capitalization of all three automakers.Joining forces would help the smaller Japanese automakers add scale to compete with Japans market leader Toyota Motor Corp. and with Germanys Volkswagen AG. Toyota itself has technology partnerships with Japans Mazda Motor Corp. and Subaru Corp.What would Honda need from Nissan?Nissan has truck-based body-on-frame large SUVs such as the Armada and Infiniti QX80 that Honda doesnt have, with large towing capacities and good off-road performance, said Sam Fiorani, vice president of AutoForecast Solutions.Nissan also has years of experience building batteries and electric vehicles, and gas-electric hybird powertrains that could help Honda in developing its own EVs and next generation of hybrids, he said.Nissan does have some product segments where Honda doesnt currently play, that a merger or partnership could help, said Sam Abuelsamid, a Detroit-area automotive industry analsyt.While Nissans electric Leaf and Ariya havent sold well in the U.S., theyre solid vehicles, Fiorani said. They havent been resting on their laurels, and they have been developing this technology, he said. They have new products coming that could provide a good platform for Honda for its next generation.Why now?Nissan said last month thatit was slashing 9,000 jobs,or about 6% of its global work force, and reducing global production capacity by 20% after reporting a quarterly loss of 9.3 billion yen ($61 million).Earlier this month it reshuffled its management and its chief executive, Makoto Uchida, took a 50% pay cut to take responsibility for the financial woes, saying Nissan neededto become more efficient and respond better to market tastes, rising costs and other global changes.Fitch Ratings recently downgraded Nissans credit outlook to negative, citing worsening profitability, partly due to price cuts in the North American market. But it noted that it has a strong financial structure and solid cash reserves that amounted to 1.44 trillion yen ($9.4 billion).Nissans share price has fallen to the point where it is considered something of a bargain. A report in the Japanese financial magazine Diamond said talks with Honda gained urgency after the Taiwan maker of iPhones Hon Hai Precision Industry Co., better known as Foxconn, began exploring a possible acquisition of Nissan as part of its push into the EV sector.The company has struggled for years following a scandal that began with the arrest of its former chairman Carlos Ghosn in late 2018 on charges of fraud and misuse of company assets, allegations that he denies. He eventually was released on bail and fled to Lebanon.Honda reported its profits slipped nearly 20% in the first half of the April-March fiscal year from a year earlier, as sales suffered in China.More headwindsToyota made 11.5 million vehicles in 2023, while Honda rolled out four million and Nissan produced 3.4 million. Mitsubishi Motors made just over one million. Even after a merger Toyota would remain the leading Japanese automaker.All the global automakers are facing potential shocks if President-elect Donald Trump follows through on threats to raise or impose tariffs on imports of foreign products, even from allies like Japan and neighboring countries like Canada and Mexico. Nissan is among the major car companies that have adjusted their supply chains to include vehicles assembled in Mexico.Meanwhile, analysts say there is an affordability shift taking place across the industry, led by people who feel they cannot afford to pay nearly $50,000 for a new vehicle. In American, a vital market for companies like Nissan, Honda and Toyota, thats forcing automakers to consider lower pricing, which will eat further into industry profits.Elaine Kurtenbach, Associated Press business writerAP Auto Writer Tom Krisher contributed to this report from Detroit.