7 Days to Die car respawning mod for A18 version. Also respawns buses and army truck. Anabella has changed it to not use an air block and to be one of the wheels with rim laying on ground so that you can tell it is not a normal tire to chop. She also used metal material so that it takes a few more hits to destroy it. Destroying will stop the vehicle respawning for anyone wanting to build where the vehicles are.
The forum topic of the mod is here.