It never occurred to me that it was an issue, I was more interested in designing the map and improving the gameplay.
Well it's up to you, but I think to really sell the whole Tron-based gameplay you should attach lights to the back of the mongooses as they would look more like lightcycles (if that was what you were going for). Look at my lightcycle design if you need ideas.
Map itself is pretty cool but as mentioned you should make the mongeese light cycles or something similar. I would wait for the update in case some new pieces come.