Diesel Punk Racer

First I made a concept art with traditional sketch tecniques, but later I decided make this design in 3D model with low poly videogames thecniques.
I am interested in the action and sensation movement from the race, with dirt, mud splash and smoke freezed in time.
The mechanical systems for wheels, direction and suspensions are full functional for rig on the future.
I will modeling the pilot coming soon, this is the reason for seem like a shadow.