As most of you know real racecars have flat bottoms, rear diffusers and in the front well... a variety. So to keep this simple. I am building a car with a flat bottom and rear diffuser, car raked at 4 deg, diffuser at 14 (all details will be adjusted based on learned info) and nothing on top or on the side of the car. So, here is my question: if I were to build a second diffuser and install it on the front wouldn't I be accelerating the air under the car and creating a really low pressure zone (high pressure goes to low pressure) and creating massive downforce? I know f1 cars in the 70's had similar designs which were later banned due to such massive downforce. Today's cars run diffusers and air dams and I see these as really high drag items with a great amount of downforce. Will my concave idea work and what are some downfalls?