I am planning on designing/building a race car with the use of an aluminium frame and sheet metal to enter in a small contest, I am having trouble deciding how I should build the body, I read about aerodynamics and found that it is important to have a low Drag Coefficient so that there is very little air resistance but after I continued reading I found that formula one cars do the opposite there drag coefficient is the same as an average van but they have a lot of down force, so I got confused, should I be concentrating on drag or down force?
Just some extra information if needed: The race car weights very little, can be picked up with one hand. It is ran by a small electric motor and can reach speeds WELL OVER 50mph.
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