Overhere in the Netherlands semi truck pulling is getting more and more popular. The rules are a bit different than the US rules but it is still very spectacular!
Some rules are that you can only use an engine that has the same brand as the frame and cab or a brand that is part of it. So if you have a Mack you can't use a Paccar engine but you can use a Renault or Volvo engine.
Another rule is that the engine is used in highway appcications so 18,5l is the biggest you can use (M.A.N and Mercedes) and the RPM's are limited to 2900.
Here are some youtube clips of some of some of the best trucks, there are 23 trucks is this competition.
An German made Magirus-Deutz with a Iveco 17,2l V8 with a Sigma pump and 2 Borgwarner S500 turbo's:
https://www.youtube.com/watch?v=w8wAB_RrcvM
https://www.youtube.com/watch?v=dHshQ-4n5ZE
https://www.youtube.com/watch?v=GRyNvu4rmmo
A Swedish Scania with 16l Scania V8:
https://www.youtube.com/watch?v=fX1D-1JZA8Y
Another German made truck, a M.A.N with a 18,3l V10 with over 2500Hp:
https://www.youtube.com/watch?v=lk-YU-Szrc8
https://www.youtube.com/watch?v=YQ34g-4CcjM
a Swedish Volvo with a 16l straigt six:
https://www.youtube.com/watch?v=bweYqUZNqbY
And a French renault with a Mack E9 V8:
https://www.youtube.com/watch?v=1sgmXBky204