Getting Three Stars
Unlike Angry Birds, you don't have to get a perfect single turn to get all three of the
stars. You can get each one individually by designing an appropriate vehicle. You can
design for speed or for durability, or even for maneuverability. So, there's no reason
you can get three stars on every single one of the sixty levels.
Component Guide/Tips (Directions)
For most directional components (including bottles, fans, and rockets) you can change
their direction by tapping on them once you've placed them on the vehicle. Keep tapping
them until they're pointing the direction that you want. Timing on some of these are very
important to solving each level correctly. Things like the bottles have a delay before
taking effect, so plan ahead and practice to get the timing just right.
If you place your wheels further apart, you can make more stable vehicles, and they'll
be less likely to tip over. If you're crashing directly into a wall and you think you have an
extra wheel, you can place it on the front of back of your design. For some levels you
even need to put the wheels on the top. Wooden wheels aren't as fast as the
metal/rubber wheels, so when speed is required, use the metal ones.