National Express Coventry commences trials on Volvo BZL Electric bus, UK September 1, 2024 | Europe News, News National Express Coventry has commenced trials on a fully electric single-deck Volvo BZL Electric bus in Coventry. The bus has been deployed on the 20, 20A, and 20B services between Coventry city cen... This content is available to only subscribers. Username or E-mail Password Remember Me Forgot Password