Game Development Reference
The car folds on another line slightly further down the side view as shown in the
next image. Draw a line along this line and again erase everything above it.
You now have an even bigger hole, but at least you know everything that's there
now is more or less correct. Now it's ime to do the patching.
Using pencil lines, just make triangles between the two edges of the hole, just like
the example I've shown here.