Cataclysm-dda: hit a wreck, it moved forever until it hit something else

[Zombiemanpig]

Describe the bug
Car collisions act like there is no drag? or something.

To Reproduce
hit a vehicle with another vehicle.

Expected behavior
For vehicles to stop moving after a while after being hit. This is not outer space.

Versions and configuration(please complete the following information):

• OS: Windows 10
• Game Version: 8621
• Graphics version: Tiles
• Mods loaded: Various, is there some easy way of copy pasting my list onto these reports?

[anothersimulacrum]

Mods: look at mods.json in your save file.
Could you upload a save as well?

[mlangsdorf]

static drag for stopped vehicles was getting applied incorrectly, causing acceleration. No need for a save, it's easy to see.