Do you have any particular design in mind which you'd like to have, i can work with 'Rhino' to create a 3d model for you. And the files from rhino can be imported to 'Cinema 4d' through plug-ins like Rhino.io

A final export of .obj or .fbx or .dae should be fine.

How do you want the loader??
Do you want the loader to be exactly same to the one in the link showing a futuristic loader, or just a one similar to that.

The loader will be a skid steer, with the referenced futurisric design elements & wheels.

im right person for ths job . you can see few model designed car by me in my profile . your price is to low for this porject and even its not guaranteed . if you wants me design this model you must guaranteed project with higher payment or give me project as my personal project . if you interest to my work send me a email to ariya.sebty@gmail.com .

with regard and respect AriyA .