I love the crt.5 as you can see mine in my avatar.....it is an amazing car on the track....mine uses an mm with 9l feigao geared 46/14 geared for about 40 mph it will go much faster if needed....I usually run mine on 3s maxamps 5000mah and it seems to run forever....as I stated it always amazes the other guys at the track with its maneuverability and acceleration....don't hesitate... its an awesome little car IMHO