Was returning home late at night on a country road. Rain was horizontal and visibility bad. I recall the white line down the middle of the road ahead was gone. All of a sudden, a whooshing noise, Windscreen completely blacked out and I was going sideways. Stopped, opened door, got out and I was on my back. The weather had washed all the farmers field mud from both sides onto the road. It was about four inches deep. Anyway, to cut a long story short, got the car home, but a strange noise was coming from under the car. Went to honda dealers the next morning and they diagnosed a panel torn down, and hanging off. It is part number 74110-TLO-GOO. What with the cost of the panel at £191.65, clips at £16.08 and labour and vat, cost comes to £294.58. They gave me the quote, and when I asked how much I owed them for inspecting the car, (They were cleaning all the mud off the chassis, checking the brakes, suspension etc) about an hour and a half labour, they told me, "No charge". Fantastic service. So do I change that panel or not. I know everything has a purpose, but is it for aerodynamics?