The downfall of Nissan Motor Co chairman Carlos Ghosn reverberated for a second day as politicians and executives scrambled to fill the vacuum at the top of the world\u2019s largest car alliance amid new reports about his alleged financial improprieties. Renault\u2019s board is convening for a crisis meeting tonight in Paris to discuss the future of the Renault-Nissan car alliance. While the French government, which owns 15% of Renault, isn\u2019t demanding Ghosn\u2019s formal dismissal, he is no longer in a position to run the automaker, Finance Minister Bruno Le Maire told French radio. Back in Japan, where Ghosn has remained in custody since his arrest Monday, more details of his alleged transgressions began trickling out in local media. Combined, they painted a picture of an executive who misused company funds to bankroll a lavish lifestyle, from luxury residences across the globe to money funneled into expenses and investment funds. Ghosn hasn\u2019t been seen in public and hasn\u2019t responded to the allegations. The revelations, which followed a months-long internal probe, put key stakeholders in a bind because there\u2019s no obvious successor. While all sides rushed to assure that the alliance was solid, Ghosn was the linchpin holding the partnership together. The French government, in particular, signaled it will protect Renault, which has benefited hugely from its participation in the French-Japanese pact. Le Maire said he will meet with management of Renault and state representatives on the board of the company to put in place interim governance. Already on Monday, President Emmanuel Macron said he would remain \u201cextremely vigilant\u201d regarding the stability of the Renault-Nissan alliance. One immediate step will be to fill the post of Renault CEO, which might fall to chief operating officer Thierry Bollore, whom Ghosn himself had previously called a \u201cgood candidate\u201d to eventually replace him at the French carmaker. Le Maire echoed those comments, saying Bollore has \u201cgreat qualities\u201d that make him capable of stepping in. He said the government will seek evidence from Japanese authorities, after the French side was all but blindsided by the probe and subsequent arrest Monday. The board of Renault and the Macron government were both caught unaware by the allegations, according to people familiar with the matter. A Renault spokeswoman declined to comment on the minister\u2019s plans. In a memo to employees sent on Monday, Bollore expressed \u201cfull support for our chairman and CEO,\u201d calling the alliance an \u201cindustrial gem that must be protected and nurtured.\u201d Renault confirmed the content of the letter, which was cited in full by the Financial Times. While there\u2019s little doubt that Ghosn\u2019s ride atop the global car industry has come to a rapid halt, there\u2019s less clarity on the nature of his transgressions. Japanese broadcaster NHK said Tuesday that Nissan paid \u201chuge sums\u201d toward Ghosn\u2019s residences sprinkled across the globe. The real estate in Rio de Janeiro, Beirut, Paris and Amsterdam, had \u201cno legitimate business reason\u201d and Ghosn wasn\u2019t paying at least some of the rent, the report said. At a late-night press conference in Tokyo Monday, Nissan Chief Executive Officer Hiroto Saikawa declined to give details on the charges, only saying that had both understated his income and misused company funds, including expenses and investment funds. All told, Ghosn failed to declare some 5 billion yen ($44 million) in his income on Nissan\u2019s official securities reports submitted over five years starting from 2011, prosecutors in Tokyo said Monday. According to Japanese law, Ghosn can be held in custody for up to 23 days without being charged.