My classmates are making mousetrap cars to go 10 feet, and whoever goes the fastest wins. How a mousetrap car works is by attaching a lever arm to the snapper (the part of the mousetrap that shoots forward). The lever arm has a string attached to the end of it, and it is wrapped several times around the axle of a car. When you let go of the lever arm, the snapper goes 180 degrees, spinning the axle and making the car go forward. Here is a link for more information: https://www.wikihow.com/Build-a-Mousetrap-Car
I have an idea for a car, but want to make sure it's sound before building it. I plan to have six wheels. The back wheels will be adopted for distance, so it will have a longer lever arm and a thinner axle. The middle wheels will be adopted for speed, so it will have a thicker axle and a shorter lever arm. There will be two strings attached to the lever arm. One will be at the end, and will be wrapped around the distance axle, while one will be near the middle and attached to the speed axle. My reasoning is that the middle wheels will provide a lot of speed, and at the same time make it easier for it to start moving. The back will make sure it keeps going once the speed boost wears off.
What I want to know if doing this will work, or if it would be better to just have two pairs of wheels that are moderate thickness and moderate distance from the mousetrap. This is my concept sketch: