My undertray has been pinched off the car. Someones had it away in the last month coz it was there after it came back from the mot. It was a bit knackered at the back and was held on with cable-ties, one of which I found near the kerb and it had deffo been snipped. Could have been a lot worse I suppose but still bloody annoying... Do I really need to replace it? It would be easier with regard to oil & filter changes but what are the good reasons for having it fitted? Cheers. Si.