Similarly to the previous post, this image was to inspire kids to imagine all kinds of cars and vehicles. The original idea was to 'show lots of different kinds of vehicles, LEGO and otherwise.' A few ideas flew around, a parking lot? a traffic jam? Well, it's gotta be fun, so I suggested what if it's a demolition derby with all kinds of Mad Max style cars racing?
If you want, you can buy the set that has the book with this illustration here.