The settings you can change are:

• Cheat Mode - Enables "cheat mode" where handcrafting is free and takes no time.

• Max Health - Adds more to max health, IE setting this to 100 equals 350 health because base health is 250.

• Inventory Slots - Adds more slots to inventory, IE setting this to 10 equals 90 slots because base inventory size is 80
• Reach - Extra reach when deconstructing buildings, deconstructing items, and accessing containers.
• (Resource) Reach - Extra reach when mining ore and neutral things like rocks and trees.
• (Drop) Reach - Extra reach when dropping items on the ground with Z.
• (Build) Reach - Extra reach when placing structures.
• (Loot) Reach - Extra reach when, i dont know to be honest, i couldnt figure it out
• (Item) Reach - Extra reach when picking up items on the ground or belts with F
• Speed - Multiplies running speed, setting this to 1 would make speed 2x.
• Mining Speed - Multiplies mining speed, setting this to 1 would make mining speed 2x.
• Crafting Speed - Multiplies hand crafting speed, setting this to 1 would make hand crafting speed 2x.

• Max Followers - Bonus max following robots, like defenders, setting this to 1 would let one more robot follow you.

• Car Consumption - A multiplier on fuel consumed and acceleration while inside tanks and cars.

• Car Friction- A multiplier on friction while inside tanks and cars.
• Car Effectivity - A multiplier on fuel efficiency while inside tanks and cars.

All these settings can be changed while in game, by each player.
The settings will only effect the player that changed them.
It also works in single player just fine.

What are the uses for this? uh, i dont know
The main one is like, testing or messing around in sandbox, and having fun with a 1000x more powerful car.

This is my first mod, I think I've done a good job, but you will probably find bugs, and crashes, (turn autosave up)
If you do find anything, uh, put it (the crash message) in the discussion thing, and I might look at it.