Garage workbench where you scribble a short description of the car. Meanwhile the generator takes a thumbnail snapshot, dynoes the vehicle and calculates its theoretical performance on standard surface (Grid) based on parts used, their weight and weight distribution, drag coefficient, tune-up and whatnot. And delivers a damage/mishap report if needed. Also sums up the hardware price of the car based on the part values and paint design. Click save and professional quality, accurate and comparable preview is born. If there is a need to correct the simulated numbers (´cos AI can´t drive a stick! etc.) then additional "Manually tampered performance" -section is created where data can be input based on test driving.