Be aware that although it is basically a copy of the LGB model, it is far from the same standard.
Plastic wheels, quite light, a cheap RC system, blue LED lights, and a really annoying 'sound' system.
A much cheaper motor, and drive. A 7.2V (usually) NiCad battery.
There was a German(?) manufacturer, who would take your loco, and fit a better chassis.
Zenner, I believe? - Not seen them mentioned for a while, so might have stopped?
<Edit>
The store is still there:
zennershop. de
PhilP