Car jump

local UserInputService = game:GetService("UserInputService")
local Players = game:GetService("Players")
local player = Players.LocalPlayer

local function onInput(input, gameProcessed)
	if gameProcessed then return end
	if input.KeyCode == Enum.KeyCode.G then
		local character = player.Character or player.CharacterAdded:Wait()
		local humanoid = character:FindFirstChildOfClass("Humanoid")
		if humanoid then
			humanoid:ChangeState(Enum.HumanoidStateType.Jumping)
		end
	end
end

UserInputService.InputBegan:Connect(onInput)