The carbon chassis for the D3 really adds an element of beauty to the car. More importantly, it increases strength whilst maintaining a lightweight nature. I would encourage buyers to also purchase the 3Racing Transverse Battery Mounting Kit For SAK-D306/SG #SAK-D320/SG as it gives a bit of weight to the rear of the car, which improves rear traction and makes the car less likely to spin out. It also provides a bit more balance from left to right. All together, a must have for any D3 enthusiast interested in getting the most out of their drift machine!