GM’s Advanced Design has won the Los Angeles Auto Show’s Design Challenge for the second year in a row. This year’s winning entry is a two-dimensional rendering of a 2015 Blue Sky Concept that addresses environmental sustainability. Called the HUMMER 02, this design proves that daily use of a vehicle could result in a net gain for the environment. The designers had some interesting ideas for the concept such as individual fuel cell powered hydraulic motors built into each wheel. The HUMMER 02 Concept also features a phototropic body shell that produces pure oxygen throughout the life of the vehicle. Algae-filled body panels transform carbon dioxide into pure oxygen that is subsequently released back into the environment and inside the vehicle.

Click ahead for more images of the concept.

GM snags L.A. Auto Show design award