Camshaft sounds and profile

If you listen closely to some cars and trucks you can already hear these sounds. The 6.0 V8 Diesel in the D-Series makes some diesel knock and ticks when you listen at idle from the front, the Grand Marshall has a smoother drone with some lifter tick when you listen to the front with the 5.5 and 4.5 V8. I think you are looking too far into the future.

As the game doesn't have cammed engines, or performance carbs that would give cars and trucks more lope and thump yet, the only difference we get now is whether it has mufflers or not. Less drone and rumble with mufflers, more without.

Maybe eventually we will get to a point where we can cam a car and it make a throaty lope idle, but for now what we have is already WAY better than the game used to have sound wise.