try an rb-v12 combined with the kyosho fw-r. tech support for both products is really good... since tuning of gp vs ep is very different i.e. low end mid end high end tuning of the engine, it is very important that you get support immediately. RB has a great website teaching how to break in and factory settings which will help you get started. the kyosho is also a shaft driven car which requires less maintenance and has the same level of support rb provides. happy racing!