if the trailer finished than comes the movie-clip on youtube.....


Truck:

The prototype is not finished but functional

5 live-axles and all pneumatic adjustable - manual
4 axles driving - for every axle one Lego L-Motor - RC
3 axles steering - one Lego M-Motor - RC

Trailer:

The protoype is not finished and unfunctional

4 axles steering - automatic 
  and pneumatic adjustable - manual



The truck have no problems to pull the trailer (The truck was powered by 4 Lego L-Engienes and for every one, one Lego Powersupply)