Keeping cart aligned with track

Help and Feedback Scripting Support
#1

I have a cart that i’m moving using CFrame on a track, I need my cart to move AT ALL TIMES on the rail it’s on, even upside down, and be able to do turns like this,
image

Currently, it works something like this;

The script:

local RunService = game:GetService("RunService")
local Configuration = require(script.Configuration)

local Cart = script.Parent
local Wheels = Cart.Wheels:GetChildren()

RunService.Heartbeat:Connect(function()
	Cart:PivotTo(Cart.WorldPivot + Vector3.new(-Configuration.MaxSpeed/60, 0, 0))
end)

Anyone have any ideas, i’ve tried using rays and using the vector normal but it doesn’t really work, i basically want it to move like it’s glued to the rails.