script.Parent.Sensor.Touched:connect(function(whoWasThat)
for _,w in pairs() do
if w:IsA("VehicleSeat") then
local speed = math.floor(math.sqrt((w.Velocity.x^2)+(w.Velocity.y^2)+(w.Velocity.z^2)))
if speed >maxspeed then
if speed > maxspeed then
print("BEEEE")
end
end
14:53:05.859 - Workspace.SlidingDoor.OutsideSensor.Sensor Script:20: bad argument #1 to 'pairs' (table expected, got no value) 14:53:05.861 - Script 'Workspace.SlidingDoor.OutsideSensor.Sensor Script', Line 20 14:53:05.862 - Stack End
I have no idea what to do with this one?

4 comments
What exactly are you trying to loop through?
http://wiki.roblox.com/index.php?title=Function_dump/Basic_functions&redirect=no#pairs You have to provide a table for pairs().
Nice of you giving me negative point.
When Sensor found the vehicleseat within above 30 MaxSpeed in workspace, then the sliding door will be unanchored, explodes.