Neons

Neons (or Underglow) is when lights are attached to the chassis of a car so that the ground under the car becomes illuminated. Neons are parts in the Aftermarket Shop, used for visual customization. The neons are made by an in-game company called Lumox, which also produces Window Tints. Standard neons can only be bought with SpeedBoost, or won from a Lucky Draw after an event. Neons are also one of the most expensive items on the Aftermarket Shop, as their prices range from to. Neons can also be found in Aftermarket Card Packs.

Aftermarket Shop
These neons are available for purchase in the Aftermarket Shop.

Special Neons
These neons are installed on a Special Edition car:

Aftermarket Card Pack Neons
These neons can be found in Aftermarket Card Packs:

Top-Up Neons
​These neons can only be obtained when you Top-Up:

Links (credit to)
http://www.team-ger.net/gxrdrago/NFSW/aftermarket/page/neons.html (click on neon names for preview images)