I agree 100% with Chrobar. The Cen Matrix is a very good buggy for the money. I also went the RTR route and I was quickly dropping money into it for hop-ups. The RTR isn't a bad but you will definately have to upgrade the servos.

As Chrobar recommended I would get the CNC servo saver arm and front knuckles. If you are really thinking about getting into racing, I would highly recommend going with a kit.

If you decide to get the Matrix and you want to upgrade to the CNC steering knuckles, I have a set in like new condition I can sell you. I have a few items like front and rear CNC shock towers, carbon fiber radio tray, 19 degree carrier hubs. PM me if your interested.