Moody's Downgrades Banque PSA Finance's Ratings New York Times PARIS — Efforts by PSA Peugeot Citroën to overcome a painful slump suffered a setback on Tuesday when Moody's Investors Service cut its credit rating on the carmaker's finance unit to junk, a recognition that it had become largely dependent on … Banque PSA Finance Downgraded by Moody'sINAUTONEWS