Ready to Run vs. Building
This is probably one of the most important things to think about when you first purchase your RC car or truck. The upside to purchasing a ready-to-run vehicle is that you can race it right then and there. The only downfall is you aren't familiar with how things work underneath the hood. So if something is broke or goes wrong, fixing it might become an issue over the course of your ownership.
Building it from scratch though gives you an inside look at everything. It doesn't matter if you're putting in the bearings, replacing brushes like we talked about earlier, or even choosing the right tires for your next run. Adding and subtracting pieces is the name of the game, including proper upgrades to make your car run as fast as that vehicle you drove to the store. If you do things right, you can have a car that normally runs 17-25mph going anywhere from 40-70mph.
So take a few minutes and think about what it is that you want out of an electric powered RC car or truck.