Hatch vs notch is just a personal opinion. All I wanted was a fox GT with a sunroof, but I found my 89 from the original owner, all stock with 79K miles for $4,250. I couldn't say no.
Most overrated upgrades:
*
BBK cold air intake. They look cheesy and ugly, and probably don't add much if any HP.
*Small engine mods. I'll probably catch crap for this, but it's a waste doing 24lb injectors, an aftermkarket intake, under drive pullies, etc for someone who doesn't go to the track, and runs around on stock sized tires. Some ET Drags would give more pick in the pants than dropping $500+ on a handful of small engine mods.
*Small nitrous shots. Oh wow, 75 horsepower for what, $500. Then you need a bottle warmer, purge kit, fuel pressure gauge, nitrous gauge, etc. Plus you keep having to refill the bottle.
That's my opinions. A had a couple friends in high school doing all the above. I didn't do a single one of those, and saved my paychecks for a
vortech. One kid did a GT40 head/intake swap with a 150shot, and slicks. He was the "fast" one in our group. Once my S-Trim was on, he kept bugging me for a race. He caught up to my in the interstate, and started to give me the 3 honks. We ran from 60-110, and I was just pulling on him a bit on the top end. It was a damn good race. He tells the story of "you almost kept up with me."
Whatever. I didn't argue as I'm not about to get involved in drama.