Clean paint and tasteful modifications Stickers, huge wings, and yellow trim.
Fast American cars. Riced out American cars
Fast trucks Loud exhaust doesn't make a fast truck.
American muscle cars commanding respect on the street. People who think Grand Ams, Berettas, etc are sports cars.
Clean, polished red tail lights Clear tail lights.  Who started that fad?
Smokey and the Bandit The Fast and the Furious
Dual exhaust with quality mufflers Coffee can tailpipes on foreign cars
Blacked out trim Chrome wheel well moldings
Great suspension Overdriving your suspension
Cruising slow in a fast car Driving fast in a slow car to keep up
Running 12's on street tires Running 13's on slicks
Not having car payments Having car payments
GM High Tech Performance Turbo and High Tech Performance
Weld Pro Stars and wide tires Wire wheels with 13" tires
The 2003 Mustang Cobra Paying $35,000+ for a Mustang
Cool fiberglass hoods Driving around with your hood off
Not racing against cheap foreign cars Trying to race American Muscle in a 4 cylinder
Muscle trucks Low riders

Disclaimer: No animals were harmed in the creation of this list. These are purely light hearted opinions and should be taken with a grain of salt, or salt substitute if you are on a low sodium diet.  If you are offended, sorry.