Shooting out both front tires on the Ural Transport Truck makes it accelerate to insane speeds instead of slowing it down.
A fresh truck with healthy tires reached ~50 km/h after ~30 seconds of driving.
Another truck with both front tires shot out reached +120 km/h in about the same time.
To reproduce:
Spawn a Ural Transport Truck
Shoot both front tires until they are destroyed
Drive the truck in a straight line
It seems to also happen to other vehicles too, including modded, although they don't accelerate this high. This test was run both on unmodded and modded, can be reproduced on both.
Video attached shows testing on the runway on Arland.