Eversholt Rail and Vivarail to develop battery technology for Class 321 BEMUs, UK July 18, 2022 | Company News, Europe Company News, Europe News, News Eversholt Rail and Vivarail have signed an agreement to develop Class 321 battery electric multiple units (BEMUs) as part of a EUR65 million investment in AC traction, air conditioning, and upgraded i... This content is available to only subscribers. Username or E-mail Password Remember Me Forgot Password