Mine

function GM:DrawSpeedo( player, size )

	local melon  = player:GetNetworkedEntity(MELON)
	local height = ScrH()
	local size = size * 0.7

	if !melon:IsValid() then return end

	local speed  = mathx.Clamp( math.abs( melon:GetVelocity():Length() ) / 1500, 0, 1 )
	local distance = speed/180
	self.Distance = self.Distance + distance

	//Make the speed an average of the last few frames (stops the needle jumping around so much)
	table.insert(self.OldSpeed,1,speed)
	self.OldSpeed[17] = nil

	speed = 0
	for _,v in pairs(self.OldSpeed) do
		speed = speed + v
	end
	speed = speed * 0.0625


	//Draw stuff
	//Odeometer background
	surface.SetDrawColor( 0, 0, 0, 255 )
	surface.DrawRect( ( height / 8 ) - ( size / 4 ) + 4,   height - ( size/2 ) - 4,    size/2, size/4 )

	//Odeometer text
	distance = string.format("%07.1f", self.Distance)
	local align = draw.TEXT_ALIGN_RIGHT
	draw.SimpleText( distance, "OdeometerText", 4 + (size * 0.65), height - ( size * 0.35375 ) - 4, Color( 255, 255, 255, 200), align )

	//Dial
	surface.SetDrawColor( 255, 255, 255, 255 )
	surface.SetTexture( self.textures[ "Dial" ] )
	surface.DrawTexturedRect( 4, height - size - 4,  size, size )

	//Needle shadow
	surface.SetDrawColor( 32, 32, 32, 100 )
	surface.SetTexture( self.textures[ "Needle" ] )
	surface.DrawTexturedRectRotated( ( size / 2 ) + (size / 48), height - ( size / 2 ) - 4 + (size / 48), size / 32, size, 120 - speed * 250 )

	//Needle
	surface.SetDrawColor( 200, 100, 0, 255 )
	surface.DrawTexturedRectRotated( ( size / 2 ) + 4, height - ( size / 2 ) - 4, size / 32, size, 120 - speed * 250 )

end