what are good materials to make a wind powered car out of?

This one is carbon fiber in a plastic resin.

http://www.treehugger.com/files/2009/03/fastest-wind-powered-car-world-greenbird.php

no, i mean a fake car like milk jugs stuff like that

To determine the best materials for building a wind-powered car, we need to consider factors such as weight, strength, aerodynamics, and durability. Generally, lightweight and strong materials are preferred for optimizing the car's overall efficiency. Here are some commonly used materials for wind-powered vehicles:

1. Carbon Fiber: Carbon fiber composites are popular due to their high strength-to-weight ratio, making them ideal for reducing overall weight while maintaining structural integrity.

2. Fiberglass: Fiberglass is another lightweight composite material commonly used in wind-powered car construction. It is durable, relatively inexpensive, and has good resistance to corrosion.

3. Aluminum: Aluminum alloys are lightweight, yet strong and resilient. They offer good structural support and are commonly used in chassis, suspension components, and body panels.

4. Kevlar: Kevlar is a high-strength synthetic fiber that is lightweight and impact-resistant. It is often used in reinforcing specific parts of wind-powered cars to enhance their overall strength and safety.

5. Plastics: Certain plastics, like high-density polyethylene (HDPE), can be utilized for the body of wind-powered cars. Plastics are lightweight and can be molded into various shapes, contributing to aerodynamic design.

6. Composites: Various composite materials, combining fibers like carbon, fiberglass, or aramid with a resin matrix, are commonly used to build wind-powered car components. These composites offer excellent strength, reduced weight, and improved aerodynamics.

It's essential to conduct thorough research and consult with experts in the field to determine the most suitable materials for the specific design and requirements of your wind-powered car.