Remember that Gridlink Override needs the car to have Gridlink in the first place. I dunno if the Comet does.
Also, don't forget the Morphing License Plate and matching Spoof Chip.
Ruthenium Polymer camouflage can be used as a quick color change in addition to the normal camo effect. People still use colors to describe stuff, so if they're looking for a black van, a red one might not get noticed. Works especially well for tailing someone.
-k