The ones at the rear of the engine compartment could be difficult but possible.....Once you get a paint match you are happy with, like Rob says get a modeling brush and dab the chips with paint...do this a few times to build up alot of paint,so it's raised above the oringal paint around it, then let it dry real good and take some fine(800+ grit) automotive sand paper and very lightly wet sand the spot so it's flush with the area around it...CAREFUL YOU DO NOT WANT TO SAND THROUGH TO THE PRIMER!!! Once you've got the chipped area sanded down level get out some polishing compounds polish the area so it shines again, follow up with a coat of wax....Good Luck!