Currently, Honda is an independent OEM, albeit one with strong links to General Motors. Meanwhile, Nissan currently forms one part of an alliance, together with France's Renault and the also-Japanese Mitsubishi. But the Renault-Nissan alliance has not been entirely smooth.

Japan’s second- and third-largest automakers hope the $50 billion deal would help them catch up with Tesla and China’s BYD in electric vehicles and advanced software.

Honda and Nissan have officially confirmed the rumors that they're pursuing a merger. Both would still operate under their brands but with a new joint holding company as parent. If Nissan-controlled Mitsubishi also came on board,