How do I check that a part's parent is on a list?

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#1

I am trying to make it so that if a part is not a model in the list, it’ll smash the motorcycle. Can anyone help?

local uncrashable = {workspace.loop, workspace.Baseplate}
local exploded = false
function onTouched(part) 
	if exploded == false then
		exploded = true
		local h = part
		print(h.Name)
		if script.Parent.Parent.EngineBlock.Velocity.Magnitude >= 60 then
			if part.Parent ~= uncrashable or part ~= uncrashable then
				--local boom = Instance.new("Part")
				--boom.CanCollide = false
				--boom.Locked = true
				--boom.Anchored = true
				--boom.Transparency = 1
				script.Parent.ParticleEmitter:Emit(30 * script.Parent.Parent.EngineBlock.Velocity.Magnitude)
				local pow = Instance.new("Explosion")
				pow.ExplosionType = Enum.ExplosionType.NoCraters
				pow.Position = script.Parent.Position
				pow.BlastRadius = 10
				pow.Parent = script.Parent
				pow.Visible = false
				local bam = workspace.Boom:Clone()
				bam.Parent = script.Parent
				bam:Play()
				local bom = workspace.Pow:Clone()
				bom.Parent = script.Parent
				bom:Play()
			end
		end
	end
end
script.Parent.Touched:Connect(onTouched)
--script.Parent.Touched:connect(onTouched)
#2

Change this line to

if not table.find(uncrashable, part) and not table.find(uncrashable, part.Parent) then