When it comes to sports cars, proportions are very important. High performance vehicles need to look dynamic even when standing still. You can achieve this by using the 1/3 rule with your proportions. Meaning the mass of the vehicle should be 2/3rds of the side view. In this instance, the windscreen, roofline and rear view is 2/3rds to the vehicles hood which is 1/3 of its proportion.