Car system, trying to remove car, if car isvalid?

[Errolight]

Hey, i tired alot, and can't figure this out. How can i get the spawned car, and then remove it, if the player spawns a new one?

function SpawnCar(ply, cmd, args)
	if (args[1]) then
		if args[2] == "car1" then
			local PlyHasCar = false
			if !ply:GetNetworkedInt("car1") == 1 then return end
			
			for k, v in pairs(ents.GetAll()) do
				if v = v:GetNWInt("vehicleID", Car1:EntIndex(), ply:SteamID())) then
					v:Remove()			
				end
			end
			
			local Vehicles = 0
			DarkRP.notify(ply, 1, 4,"You're jeep has spawned! ".. Vehicles)
			
			local Car1 = ents.Create("prop_vehicle_jeep_old")
			Car1:SetModel("models/buggy.mdl")  
			Car1:SetKeyValue("vehiclescript", "scripts/vehicles/jeep_test.txt")  
			Car1:SetPos(Vector(59.891289, -964.276733, -112.143753))
			Car1:SetAngles(Angle(0, 0, 0))
			Car1:addKeysDoorOwner(ply)
			Car1:CPPISetOwner(ply)
			Vehicles = Vehicles + 1
			Car1:Spawn()  
			Car1:Activate()
			Car1:SetNWInt("vehicleID", Car1:EntIndex(), ply:SteamID())
		end
	end
end
concommand.Add("SpawnCar", SpawnCar)

[Rubat]

function SpawnCar(ply, cmd, args)
	if (args[1] && args[1] == "car1") then
		if ( IsValid( ply.Car ) ) then ply.Car:Remove() end
			
		DarkRP.notify(ply, 1, 4,"Your jeep has spawned! ".. Vehicles)
			
		local Car1 = ents.Create("prop_vehicle_jeep_old")
		Car1:SetModel("models/buggy.mdl")  
		Car1:SetKeyValue("vehiclescript", "scripts/vehicles/jeep_test.txt")  
		Car1:SetPos(Vector(59.891289, -964.276733, -112.143753))
		Car1:SetAngles(Angle(0, 0, 0))
		Car1:addKeysDoorOwner(ply)
		Car1:CPPISetOwner(ply)
		Car1:Spawn()  
		Car1:Activate()

		ply.Car = Car1
	end
end
concommand.Add("SpawnCar", SpawnCar)