I am stumped with this "bug"

[vizwiz]

After returning from back to back road trips of 2K and 1K miles, I spent a lot of time today cleaning my new black car. Managed to get all of the bugs off, but there is a raised spot in the middle of the hood that defies all of my efforts:



http://www.autopia.org/gallery/data/500/17676img_3087-2.jpg



I`ve tried bug&tar remover, mcguiars scratch remover, light polish buff with my porter cable, fingernails, clay, WD-40 and elbow grease. None of these had any noticeable effect in removing the spot. It feels hard and raised to the touch, I am worried that it might be cement or something similar.



Does anyone have any suggestions for other cleaning options to try? I`m almost desparate enough to take a putty knife to it :(

[jfelbab]

I assume you tried clay and it didn`t remove it.



I think I`d try soaking a paper towel in vinegar and leaving it on the blemish for about 15 minutes, keeping it wet throughout. If it is cement it should flick off with your fingernail after that.



Don`t forget to rewax the area after removal.

[vizwiz]

:bounce :bow :bow :bow



You guys are the bomb! Worked perfectly, actually dissolved the contaminant away completely.



Thanks, you`ve helped turn a sh*tty sunday into a great one!