During InnoTrans 2012, Bombardier's biggest innovation on 1:1 scale was the four engine TRAXX DE locomotive. They even saved a special works number for the locomotive at the fair (the designated unit 245 003); no. 35000.
We are especially curious for the results are in practice, results regarding efficiency, eco-friendlyness (as far as you can call a diesel combustion engine eco-friendly anyway) and the advantages of the redundancy of the concept.
Related sections:
TRAXX DE ME: Deutsche Bahn