This is another play set using the Matchbox size cars. It works fine with the included car. I currently do not have any Hotwheel or other competing cars in the Matchbox size to test with the set. I will have more availability in a month or so and if I find any incompatibility I will come back and add to this post. I am aware that due to the configuration some vehicles won't work but I think compatibility is important in these toys. The set is reasonably sturdy. As in any toy, the exuberance of the child will have a major bearing on durability. I think the addition of some of the other sets to increase the complexity and play value would be a good idea. Overall this seems like a fun toy. $20.00 at Amazon From the vendor: It's a big beast in the big city! The giant croc has swallowed a vehicle, and only you can save it! Rumble over the rocky bridge, climb the "stone" ...