Re: dent (small) on bonnet how to remove?
Hi, to remove the dent in the bonnet, open bonnet and loosen 2x 10mm-head bolts on each side. Bonnet should then lift off. Dent gone!
Basically your best bet is to get some filler, an aerosol can of primer, 80, 240, and 400 grit sandpaper, and a spraycan of paint colour-matched to your requirement (white?) Be aware that the white paint may be hard to match - test it first.
There you go, your first dent-repair project...
Use the 80-grit sandpaper to sand all the paint off around the dent. Mix up some filler and apply with a flat spatula (piece of cardboard etc.) Don't worry if you don't get all the dent in one go. After 30 minutes or so, use a sanding block with the 80 grit paper to sand it flat. Try not to use your fingers to do the sanding... use a block, you'll be surprised at how wavy the result is if you don't.
Once the dent seems to have gone, sand very carefully with 240 grit to make sure that all scratches from the 80 grit are gone. You might like to apply a thin coat of primer and sand that off, because that will show if any scratches remain. Then, apply two coats of primer and allow a day or two to dry. Get a bucket of water and sand with the 400-grit sandpaper, wet. Finally, dry it and spray on the topcoat paint.
Whether you want to do the above depends on how 'mint' the car is, the dent removal guys are a nice idea for expensive/good condition cars. Otherwise it's a useful skill to have, to fix your own dents, as there's sure to be more in the future
Edit: Dave's answer is a good one as well!
-Alex