Off-road Racing Chassis Design

I'm seeking an expert to design a robust off-road racing chassis. The chassis will be constructed primarily from steel and must be able to withstand the rigors of rocky and muddy terrains.

Key Requirements:
- Primary use: Off-road racing
- Terrain: Rocky and muddy environments
- Material: Steel

Ideal Skills and Experience:
- Proven experience in designing off-road racing chassis
- Strong knowledge of steel construction and its performance in extreme conditions
- Familiarity with rocky and muddy terrains
- CAD proficiency for detailed design

Please include relevant work samples and a brief outline of your approach.