There are a few rules to follow in my view of what's tasteful:
1. Avoid making the car look cheaper, or as a lesser model with upgrades.
2. Avoid destroying the flow of the car's original design.
3. Avoid Destroying the car's purpose.
4. Avoid Destroying the car's performance in exchange for looks.
5. Striving to make the car different, unique, but still making it hard to notice the changes. In other words; making the car look as that's the way it came out the factory.
6. And most important. Wheels, paint, and parts are to be chosen according to the car's model, year and country of origin.
All these "stanced" cars, huge chrome wheels, and wide body things; sorry, but they are just tacky as hell. But to each its own, though...
These are good examples of what's right according to my point of view:
Just to name a few. It's really hard to find decently customized cars these days.
