I lucked out and found the neon wire on sale for $4.50 at Target. so I bought 3 packs. The neon wire is made for real cars and is designed for 12v but it seems to work fine off of 9.6v. I am not finished with the paint yet I still need to paint the roof white and I might add some paterns or even a mural to the car. I also want to add some led's for the head and tail lights.