The framework contract calls for 100 standard freight locomotives, 50 Last Mile locomotives equipped with a 1.8MW diesel engine, and 50 six-axle Last Mile locomotives, which will be fitted with a 5MW diesel engine.

Siemens' Vectron family does not currently include any six-axle locomotives and those with Last Mile equipment have a maximum output of 180kW in diesel mode.

Detailed concepts for the new locomotives will be revealed after a 10-day appeal period has lapsed.