This is a quick overview of the TrailMaster Mid XRX go cart. This is not an ATV. It's essentially a massproduced Chinese made go cart with a single cylinder 6.5HP lawn mower style engine (also apparently a Chinese made with no brand name on it that I can find). In the video I go over the build quality and my impressions of the go kart as well as what you should expect when you order one (the condition it's in when it arrives some assembly required). This is not the 'Mini', but the Mid size. Be careful that you don't buy the XRX Mini if you're needing something for an older child. I'd say anywhere from 7 or 8 years old to maybe 13 or so would be a good age range for this go cart.
Overall, for $1,500 I'd say it's worth it. It has plenty of power and has a reasonably smooth ride. Due to the low clearance of the rear sprocket, it's not really intended for really rough terrain where you need lots of ground clearance.
Most likely, you won't find one of these in stock at a local dealer. From my experience, just about all the dealers of these are online only and they don't keep them in stock. When you place an order, the dealer (the middle man) sends an order to the distributor warehouse and the go kart is shipped directly to you from the warehouse. I imagine in most cases, this is how it happens and the dealer NEVER sees the unit before it's shipped to you and therefore has no ability to double check to be sure your kart has all the parts with it, etc, etc. Usually this isn't a problem, but I can see how the dealer never laying eyes on the unit before it comes to you could be a problem if there are missing bolts or other misc parts that come with the kart (because like I said in the video, these are not fully assembled from the factory). Mine had a few lose bolts just laying at the bottom on the cardboard and could very easily have fallen out during shipment...which would have been a big pain in the neck to then go back to the dealer and request missing parts.