(1) Newly C-hub steering system. King pin axis extend to the wheel center improves steering performance. (2) Newly developed suspension system, twin adjustable rear suspension modes for flexible driving mode & smooth driving mode. (3) New lightweight ultra-compact gear box with a low center of gravity and high durability. Front bumper's backward movement, protect chassis distorted even broken when landing after jumps. (4) Solid aluminum chassis and the width of only 137mm, centralized chassis design to get quicker steering and fast response. (5) Motor mount, not only keeps the motor cool, but also protects the motor when jumping and bashing. (6) Adjustable battery holder mounts, can fit almost all stick Li-Pos available in the market, up to 4packs and two series connection, support for 11.1V battery. (7) Optional for mechanical braking system, provide accurate decelerability and jumping gesture control and continuous turning track control. (8) 16mm super big bore oil aluminum shocks. (9)Newer Gear Ratio, offers better acceleration and higher speed. (10) Easy to maintain and repair pinion gearbox. (11) All steel gear. (12) Fully adjustable sway bar ball cups. (13) New adjustable high-downforce wing for better rear end down force and stability (14) Other common features. 3 diff. shaft drive 4WD; 2.5mm main chassis; 3mm F/R Alum. shock tower; High-torque steering servo with metal gear; Front universal drive shafts; All linkages set with adjustable turnbuckle; Option for four disc brake system; Brushless motor, brushless ESC, Li-Po battery and balanced charger, 3 channels FM radio(RTR version). 4pcs/Carton Ctn Size:67x62x38cm G.W:20KG.