We have built a car from the official kit (which was donated to us 2 years ago, albeit with some bits missing) and have finally got it into good working condition (the electrics no longer randomly fail). We would like to get into racing, so would like to build a streamlined body for the car and some wheel covers. What is the most simple way to build a decent raceable body? I have seen a lot of people on here talking about just sculpting a car-sized block of foam, and solartex heat shrink stuff but I am not entirely sure what it does. We have access to lots of fibreglass matting (but this may be too complex for a first attempt, or not) and enough foam to produce a whole body or a mould if we needed to. Our current body is just a series of flat aluminium panels which cover the shape of the car and although it is very shiny (essential requirement to get more funding from the school) it is quite heavy and not very aerodynamic. Are there any essential things which must be considered when building a body, and what is the recommended route for beginners?