Some tips to get a good mesh

• Try to make a clean mesh, I mean to make a rectangular poly structure. Rectangular poly structures have a good set of normals (think on a flat surface created using Create -> Surfaces -> Flat, this flat surface have a rectangular poly structure). And a good normals means good shading and good reflections.
  
  
• An original GP4 car has about 2200 faces (poligons), so try to model as few polygon as possible. It'a because if you use a lot of polygons your car will be great (to take an screenshot in ZModeler for example) but when you play in the game with your car the CPU will have to calculate a lot of poligons and the frame rate will decrease.
  So think what parts of the car need more poligons and what less, and try to save as poligons as possible
  
  
• Remember that the basis of our work are the photos of the car, therefore we need a good photos to make a good a realistic car.
  
  
• To model surfaces in a easy way, begin making a flat surface and then extrude (add the 3rd dimension). It's the process uset to make the front wing.
  
  
• Remember that we have to make only a half car, the other half is made by mirroring.