Bad Piggies Flight in the Night Level 4-19 can be three starred using a single contraption. Use a simple 3-box cart with an engine-powered wheel on the right. As you approach the bottom of the hill, turn on the wheel to reascend the slope and travel through the gap. Climb to the star box, then slowly drift to the finish line.
If you have a different strategy for completing this level feel free to leave a comment below.
You have to make some sort of contact with the grey rock the first star box is on if you want to be sure of going down the ramp. Also add a firework somewhere and it could or couldn’t work, but it’ll look swell:)