Allow the Creation of Horizon Edition Cars

There should be the ability to create our own Horizon edition car. No offense to the developers, but who decides what is a Horizon edition or not? The fact that better performance, special plates, special tires, and skills are locked to random selection of cars is interesting.

Instead, there should be a progression system on each car (drive a particular number of miles with a car, win a certain number of races, sell a particular number of tunes/paints, etc) that once completed (any of the above mentioned, not all), unlocks the ability to convert it to a Horizon edition ie get the special plate, tires, extra performance options, even choose the special bonus. This would be incentive for players to make a truly special car and even sell them on auction house for extra credits.