In last season we used for the first time aerodynamic parts on our vehicle. It included front, rear wing and diffusor. We planned to make also side wings but we did not manage to produce it. Downforce effect of diffusor was after tests reconsidered and therefore we did not use it for our last races. We used simulations of fluid dynamics both in 2D for choosing of right profile and 3D for final CFD. Both wings changed significantly properties of our car so we will continue in their development.