Hi there,
Just discovered the C-Model index, and realized that I have a few creations I could add to the list... 'cause I love C models :)
Here is one I did some time ago with the 42035 set. Instructions are available on rebrickable.
This is a small quad, featuring a fake engine driven by the rear wheels. The rear axle is also pendular, and the steering works. Here are a few more pictures:
Any comment welcome :)