In time trial, if you hit the walls on the last section you get the "next lap invalidated" What's the point? On all the time trial maps there's no way to abuse the walls anyway and if you happen to go off and hit a wall in the last section it means you lost a ton of time anyway because the sand/grass slows you down. You can just select "restart" and instantly restart in the same section so it does nothing but be annoying. With running starts all I can see "next lap invalidated" do is be annoying and waste a couple seconds and button presses. I really hope they do away with that in GT5.