Compound Curves 33 Chevy

This video shows my current work in SketchUp on a 1933 Chevy Master 5 window coupe. This car has several compound curves through out it's design. The top of the car show in this video is a simple compound curve created from two curve surfaces. However this car has compound curves created by the intersection of three simple curves. This has presented a challenge for SketchUp design. I will be sharing my attempts to solve this problem. There will be more demos showing my attempts and possible solutions. I would like input for any of my followers or anyone else.