Ruhrbahn Essen commences trials on RB6 electric minibus, Germany May 27, 2025 | Europe News, News German operator Ruhrbahn Essen has commenced trials on the RB6, a new electric minibus from Wrightbus’ Rightech brand. The bus trials are being conducted on bus lines 182/192 and 190 in Werden, Fisdch... This content is available to only subscribers. Username or E-mail Password Remember Me Forgot Password