On MP i drive the new VOLVO 750 that i like very much with the exception of the mirrors posicion but it's a minor thing.
Now on the SP thats a diferent story, i drive the Volvo VNL 780 (Reworked version 3.0 mod by Malcom37 and improved by Kriechbaum) with the Cummins ISX engine.
Man if you have a good sound system as some of you mention in some posts back, you will love the sound of this truck... and the jake brake... is to die for!!!
Check it out if you haven't seen it yet: https://www.youtube.com/watch?v=kjLZQX6vQvo