Well, if you have 300-500 bucks to cash out on this hobby, and want something you can run in your house, I would go with mini-z. A stock Z will beat a stock xmod, and a full blown z will whoop a full blown xmod. You can make an xmod go fast with little money, and you can make a mini-z go faster ( with more money of course

) Personally, I like the street racer feel that comes from the body styles of these xmods!