The B 82500 (often referred to as BGC or BiBi) is a class of dual-mode, multi-system, diesel and overhead electrification (1.5 kV DC, 25 kV AC) powered multiple unit built by Bombardier for SNCF. It is one variant of the Autorail àGrande Capacité. These trains were built at Bombardier's rail manufacturing plant in Crespin. Currently, it operates on TER lines and Transilien Line P.
The class was officially launched at Troyes station on 9 October 2007 for service on the TER Champagne-Ardenne network.