A small update. Kyosho has released (in the second half of 2003 for those aliens reading this a long time from now) the second generation of Mini-Z with some redesigns of the chassis. Mainly lowering of the center of gravity by means of rearranging the batteries.
They also released the Mini-Z Overland which resemble the kind of car used in the Paris - Dakar Rally and those have a little more suspension to make them able to handle stuff like carpets (something the original Mini-Z doesn't do too well).
And finally, no doubt inspired by innovative modders that had already tried this themselves, they released the Mini-Z Monster Truck. While the notion of something roughly the size of banana being called "Monster" might seem silly to some, they look like fun. And that's what it's all about. As Kyosho themselves say: "The Monster Truck is the biggest, baddest Mini-Z model ever!".
Info gathered from www.kyosho.com