The SOM car has some sloppy looking exhaust, and wheels that are in very poor shape. The tint is also a minus. It has the typical sinking rear seat tops and some other visible wear. Probably several more blemishes in person - just an average example for the mileage. The color combo might be rare, but overall I wouldn't consider this a great deal at $15k based I what I can see in the pictures. Considering it's at a dealer though, I guess the asking price isn't too bad. The SOM is nice, but I don't personally like the tan interior with that color at all, just not my taste.
The CETA has a ton of modifications plus too much mileage to have any true "collector" value at this point. What you'd be paying for here is mostly the extensive modifications. Seems like it could be a good deal for someone looking to get into an already built car, as the condition otherwise looks nice for being near 90k miles. The CETA color and graphics tend to be polarizing, I'm in the group that doesn't like the package but I'm sure there are plenty of others who would find this car desirable as it sits.
The 10th anniversary Firehawk has it's share of blemishes as well. Not too bad of a price considering it's a dealer and it's probably the most "special" car of the group based on what it originally was. I can see a handful of cosmetic concerns but nothing jumps out as being horrible. Might be a good deal for someone who wants a really rare model and package, but doesn't want to spend huge money for a super nice/low mile one. For similar money though, I'd rather have something that's less "special" but in nicer condition with lower mileage.