How to simulate car rolling down ramp?

I designed a car for a competition ( that is a 3D printed pinewood derby car. How can I simulate the car driving down the ramp in SolidWorks 2012? I wanted to see how changes would change the speed and flight distance. The ramp and the wheels are provided in the above link.

Here is my car:
IDSA Launch Day 2013: entry 1

1 Answer

You would need a CFD software to do so. Solidworks does include "Motion Study" but you can only generate friction from the wheels to the ramp which is independent of air resistance.