Space Rover Challenge W.i.p.

Hi, everyone. I decided to take a part in the last Hum3d challenge, that is about Space Rovers.
https://hum3d.com/space-rover-challenge/

My idea is about a futuristic delivery service on the red planet, Mars.
I called this Service "MARS CARGO" and its claim would be "FASTEST DELIVERY ON MARS".
I think one day we will start colonizing Mars and we'll need a fast, strong, delivery truck system to bring stuff from factories to colonies and from a colony to another. Cargo trucks will transport different kind of stuff, like medicines, food, plants and seeds, animals, machineries... so a modular crate system could help to load trucks with different goods.
Modules will be loaded with special magnetic cranes, helped by optical alignment.
I think those trucks also need robust wheels and suspensions to run fast on the rocky and sandy terrain of Mars.
Theese renders are wip and they help me to define the final concept.
Enjoy