CO2 Cars By Johnny Stewart lll. Define the problem. Speed Best looking Best Design. Brainstorm. Think about what you need to do to make your co2 car the best it can be. Color? Shape? Size? Design?. Research. S peed can be up to 60 MPH. CO2 is abbreviation for carbon dioxide.
Run test to see how efficient your car is.
What can you do to make your car better?