Flattest Cars Ever

I got these cars a while ago at the 99 Cents Only store. They came in a 2-pack and are amazingly sturdy for the price--the bodies are even made of metal! I wish that I had picked up more colors since I don't know if I'll ever see more like this again. It is such a unique design and Kaz loves them. Since the packaging is long gone, I have no idea about what they were called or who made them. My guess is that it is some unknown generic brand, though. The only information about them on the bottom is that they're made in China.