Sales-Lentz to deploy Volvo electric buses in Differdange by June 2017, Luxembourg May 14, 2017 | Europe News Luxembourg-based bus operator, Sales-Lentz, will deploy electric buses for the city of Differdange on June 6, 2017. The four 7900-series electric buses have been delivered by Sweden-based Volvo, under... This content is available to only subscribers. Username or E-mail Password Remember Me Forgot Password