Tonight i started to take my HO Scale Spectrum Doodlebug apart and ran into a problem. For some reason or another i can not get the shell off of the car body. I have tried, pulling, prying & other things to get it off but it will not come off. The reason i want to take it off is so i can airbrush some dirt and grim on the trucks of the doodlebug. I would like to have it apart by tonight because it is supposed to be really nice out tomorrow and while it is nice i would like to get this done. So can anyone with advise please help me out with this?