The vehicle creator tools are quite intuitive. And after a little while, you'll find it's not hard to create a car, plane, helicopter or boat. A lot of it comes down to common sense. For instance, if you want a vehicle to fly, it's going to need wings or propellers, and they need to be balanced on the vehicle.
What's the point of vehicle creation? To complete tasks that are given you to earn music notes, jiggies and T.T. trophies. There are a good variety of challenges. And while some may say they get repetitive, I do not mind this because they may be similar to other challenges, but then they put some variation into them. To complete challenges with good scores, this game really encourages outside of the box thinking. It's not always the most obvious vehicle type that will yield the best results.
The sound in the game is great too. The sound effects are very cartoonish, and add to the feel of the game. The music really shines through giving the feeling of fun to be had by the player.
Overall this is a great game for kids and adults. While it has vehicle creation, younger ones may have a tough time with that. As a result, the ability to buy vehicle blueprints is in the game. I know this has been very helpful for my 5 year old son, since understanding the basics of making a vehicle isn't easy for him. But over time, I have also noticed him trying to build things as he gets an understanding of the physics and what is needed to make a vehicle do a specific task.
I highly recommend this game to anyone who wants a good time with a game that allows you to shape what you get out of it. It encourages creativity and rewards you in spades for doing so. And at the cheap price it is selling for on Amazon, I would think this is a no brainer.