The shell is woven to maintain the appearance of a leaf, and the designers say that the average life span of the project is projected to be around five years. That may seem short, but the designers say that the time period is approximately how long current car owners keep a vehicle.
The project does seem to have some details to sort out, however. We shudder to think of the overall environmental product impact of out-right replacing a vehicle every five years instead of allowing it to soldier on in the used market, and there are certainly safety concerns to be weighed as well. Still, the Phoenix Bamboo Car is a beautiful design, and we certainly wouldn't mind seeing manufacturers use a higher volume of renewable materials in their products.