...well, i study automotive engineering, so i look at it exactly the same way. But again, engine braking is not due to vacuum in the intake system. Usually in trucks (diesels mainly) you have an extra engine retarder, which closes the exhaust-system to generate extra compression or an eddy-current brake.
I am not saying that the vacuum has nothing to do with it, but the main reason for the braking effect is inertia and friction in the hole drivetrain...
Ok, i considered that the clutch is progressive. And of course nobody race on 6th gear at 3000rpm and therefore the priority is rather small. But that doesn't make it more realistic
Another auto-clutch thing...(i hope it was not mentioned before...):
If you take the LX6 for example, and shift up very early, so that you drive in 6th gear @ 3000rpm the auto-clutch will half disengage at full throttle. My question is now - why? I don't see a reason for this behavior, because the engine is far from idle speed and it won't drop...
With manual clutch that does not happen, of course...
The white line which goes across the lane near the pitlane traffic lights "flickers". It disappears when you are 5m (circa ) before it and comes back shortly after...
I (i.e. a friend of mine) have the problem with wine & lfs too...
But the problem only appears, when another friend and me joins the server and race together for some time...like 10-30mins... :/
If we are not together on the server it runs fine.