I'm building my youngest daughter a Stampy of her own out of various bits and pieces, but I'm a little stumped on the motor. It has to be brushed, torquey and slow. I'm leaning toward a E-maxx 550 (I believe it's a 21 turn), geared 16/90 on seven cell NiMH. I haven't decided if we're going for SCT wheels/tires, or 2.2, but I'm thinking 2.2 with Mashers or Wheely King tires for maximum cushion. Top speed isn't a concern, but control and cool running is, as well as long run times. This will be her first car, and she won't drive either of ours because "they are too fast and I always run into myself."