Introducing the Minimo, A Fun & Eco-Friendly Ride

Here is the translation of your requirements into English: 1. The maximum weight of the car is 700 grams, and the material used can be any type. 2. The maximum dimensions of the car must not exceed: length 250mm, width 150mm, height 80mm. 3. The car is a tricycle with two wheels in the front and one wheel at the back. According to the above requirements, draw a design diagram. The design should be simple, and the designed car should be non-motorized, capable of achieving acceleration as much as possible through the release of potential energy.