Custom Scenario Maker

Since the tycoon part will not be out for a while. Perhaps you can add a way for us to set our own custom targets for a scenario. A simple input form could do. For instance, I enjoy taking a specs off the shelf for a car. Building it out, and then trying to get it to run, seeing if I can hit the same torque and HP curves, how does it perform in comparison 0-60. After which I can play around and see if I can improve upon the performance. If we could be allowed to create a scenario with target ranges, weight, etc (and the other options) it could make for some fun.