[Christ]

You can make ANY tire have ROWL - we used to do it for customers at Sears as a side-thing... You just have to touch them up once in awhile, which isn't an issue if you're into detailing your car. Make sure you apply the color using either a wax pen or a grease pencil, then wax your tires.

As far as the sunroof, if you want to make a good plug of it, take the sunroof section that you removed, make a vacuum form of it, and lay in the fiberglass with a dacron or foil peel-ply in the mold. Your "rough side" will be the inside, so you'll have a smooth surface that you won't have to sand much on the top, and it will follow the same contours as the original glass, including the buttons, if you don't fill those bumps in the mold. (If yours has buttons, I can't remember)

If you're into the look, even though it has minimal aero effect, you can always shave body lines, door handles, etc... it's a very ninja mod to do. Very Ninja.

If you want to keep your wheels, but make them more aero (and keep them cleaner) you can vacuum form some plugs that fit in the back of them, so the brake dust doesn't get on them, and it keeps them from becoming giant fans while you're at speed. If you want to see your brakes, this won't work.