local Car = game.Workspace.Car1 -- Car1 is the name of your car in workspace.
local Seats = Car.Seats:GetChildren() -- You should have a model called "Seats" in the Car model.
local Gui = script.Parent:FindFirstChild("ExitGui") -- In your CarTP (The part this script is in), you should have a ScreenGui called "ExitGui".
local Gui2 = script.Parent:FindFirstChild("LoadingScreen") -- In your CarTP (The part this script is in), you should have a ScreenGui called "LoadingScreen".
local TeleportService = game:GetService("TeleportService")