Time to release your inner audiophiles!
Well, maybe I don't belong to them, but having a separate volume bar for engine* is a very useful option for me since (IMHO) VNL and W900 have too loud engines, and 379 and old Scania V8 — too quiet ones. And I can't stop to admire Lonestar's sound — not so loud, but very expressive.
*the funny thing is that
Hard Truck 2 had this feature in 2001, although it was nessessary for its poorly made sound system, where the engine noise was pretty annoying and every truck sounded the same.
SCS-made games (even the 2002 one) were more pleasing for my ears.
UPD:
He-he, I think I figured out for what truck
this steering wheel is intended
. Now those oddly located turning signals will not have a chance to hide from my eye.