This little car is not based on any real cars that I know of, I just wanted to build a car, this is what I came up with. The entire center and back section are supposed to be a large engine, with the large air scoops to cool it down. Although it is 10 studs wide, it is technically at "minifigure scale" because it is designed for lego minifigures to drive
About this creation
the huge, turbo engine up close. The black section is the engine itself while the gray is all part of the exhaust system
here is the cockpit, see the controls at minifigure scale
This car first reminded me of a Ferrari F40 and the F50 cars. Then it reminded me of the cars in the XBox 360 game Split Second... You have many elements going here. Very impressive. I was inspired by your design to build my own car to the same scale. Though mine will be based on a real car. The Lamborghini Egoista. I agree with what others said that your car should be an official lego set.