Addon: Abandoned Vehicles
Author: Studio38
Abandoned Vehicles turns rusty wrecks into usable transport. Cars are found while exploring and become driveable after the player supplies gasoline. Individual vehicles have different maximum speeds, so restoring another wreck may reveal a better machine.

Fuel is produced through a full processing chain. Limestone found below deserts is smelted into crude oil, then distilled and refined through several stages into bitumen. A brewing stand combines the final material with an empty jerry can to make gasoline.

Fuel decreases during travel. Entering the driver's seat switches on automatic headlights, a real-time speedometer shows current movement, and collisions damage creatures in the vehicle's path. A damaged car can be repaired with a spanner.

The add-on keeps achievements active, uses no player file and needs no experimental features. Both behavior and resource packs are required; some visual effects additionally depend on Vibrant Visuals.
How to install the add-on
Download the .mcaddon or .mcpack file, open it with Minecraft and wait for the import to finish. Then enable the resource and behavior packs in the world settings. If the add-on requires experiments, turn them on before launching the world.