Rocar De Simon U412E
 Rocar De Simon U412E is a model of trolleybus that was manufactured by Rocar in Romania in 1997 and 1998. A total of only 19 were produced 18 equipped with DC motors and one with an AC motor. Two were delivered to the Bucharest trolleybus system #7454 and #7459 (the one on AC) another two were delivered to Cluj and the remaining 15 were delivered to Constanta.