BEIJING (BLOOMBERG) – Tesla and SAIC Motor told Shanghai's government they may have difficulty maintaining production if a power crunch in Sichuan continues to impact suppliers, according to people familiar with the matter, prompting city officials to ask the southwestern province if it could prioritise electricity for the carmakers' suppliers. The two companies informed authorities in Shanghai that key parts of their supply chains may be impacted by power cuts in Sichuan, which is seeing its worst drought on record. The Shanghai Municipal Commission of Economy and Information then reached out to the government in Sichuan in a document that…