Quote Originally Posted by Kasper
Its actually a symbol that was made for Japanese raciers to identify what level of raceing they are.. and someone brought it over here and thaught they were gonna be so damn JDM by putting it on there car and now people are doing all sorts of dumb stupid shit with them!

It's a symbol of a "new Driver" or soshinoya. There is also one for "elder Driver" or Koleshiya. Its not just used by racers