The book could have benefitted from some diverse characters for sure, but the rhyming text and the prompts for kids to shout out what vehicle is coming next will be a hit. "Wheels go fast. Wheels go slow. Shout what's coming, if you know!" The book uses some words for motorized vehicles that aren't as familiar to most readers in the US, such as "motorbike" instead of motorcycle, and a "big rig" instead of semi truck. However it's a good time to point out that there are lots of different words for things.