2016 NIO EP9 Dimensions, Size & Specs

The NIO EP9 has a curb weight of 1735 kg (3826 lbs). For an electric hypercar equipped with high-capacity batteries and powerful electric motors, this weight is optimized to balance performance with structural integrity. The relatively low curb weight helps the EP9 achieve a remarkable power-to-weight ratio, contributing to its rapid acceleration and impressive handling dynamics. The use of lightweight materials like carbon fiber in its construction further aids in keeping the weight manageable while ensuring safety and rigidity.

The NIO EP9 utilizes staggered tire and rim sizes, with front rims sized at 13J x 19 and rear rims at 10.5J x 21. Corresponding tire sizes are 320/705 R19 at the front and 295/35 R21 at the rear. The wider rear tires provide increased grip for delivering the electric power to the road, enhancing traction and stability during acceleration and cornering. The larger rear rims allow for a lower profile tire, which improves responsiveness and handling precision. These specifications contribute significantly to the EP9's high-speed cornering capabilities and overall performance on the track.

Considering the NIO EP9's dimensions—4888 mm (192.3 inches) in length, 2230 mm (87.8 inches) in width, and a very low height of 1150 mm (45.3 inches)—it may present challenges when parking in a standard residential garage. Most typical garages measure around 2440-2740 mm (96-108 inches) in width and 4877 mm (192 inches) or more in length. While the length might be compatible with some larger garages, the width of the EP9 is quite substantial, potentially requiring a wider space or very careful maneuvering. Owners should verify their garage dimensions to ensure a comfortable fit without risk of damage.

Since the NIO EP9 is the first and currently only generation of its model, it does not have a direct predecessor for size comparison. It represents NIO's initial foray into the hypercar segment, designed from the ground up to showcase electric vehicle performance with cutting-edge technology and design. As such, its dimensions reflect a purpose-built approach focusing on aerodynamics, stability, and speed without legacy constraints. Future updates or successors may alter dimensions to enhance performance or usability, but the EP9 sets a baseline benchmark for comparison.

Compared to similar electric hypercars like the Rimac Nevera or Tesla Roadster (second generation), the NIO EP9 stands out with its uniquely wide and low stance. The EP9 is 4888 mm long and 2230 mm wide, which is broader than most traditional sports cars, emphasizing a track-focused design prioritizing stability and cornering ability. While its height is quite low at 1150 mm, this is typical for hypercars to reduce drag. The Rimac Nevera, for example, is slightly shorter and narrower but taller, balancing aerodynamic efficiency with some road practicality. Overall, the EP9 is one of the widest and lowest electric hypercars, making it distinctive in both size and purpose.

The NIO EP9, with its coupe body style and compact dimensions, prioritizes driver and passenger experience focused on performance rather than spaciousness. The low height of 1150 mm (45.3 inches) means a very low roofline, which restricts headroom but enhances aerodynamic profile. The wide body accommodates two seats comfortably side by side, typical for a high-performance sports car, but there is minimal room for cargo or rear passengers. The interior is designed for a cockpit-like feel, prioritizing driver engagement, control interfaces, and safety harnesses rather than comfort and storage capacity.

With a length of 4888 mm, a width of 2230 mm, and a very low height of 1150 mm, the NIO EP9's proportions are carefully engineered to optimize aerodynamics and downforce. Its wide stance increases lateral stability, especially in high-speed corners, while the low height reduces frontal area and drag coefficient. The bodywork integrates various aerodynamic elements like active wings, diffusers, and underbody tunnels to manage airflow efficiently. These dimensions allow the car to maintain grip and stability at speeds that exceed those of traditional internal combustion engine hypercars, leveraging its shape and size for both speed and safety.

While exact ground clearance and wheelbase figures are not provided here, the NIO EP9's design strongly suggests a very low ground clearance typical of track-focused hypercars, likely under 100 mm (around 4 inches). This low clearance improves aerodynamics by reducing air flow underneath the car and lowering the center of gravity, which enhances cornering stability. The EP9's wheelbase, though not specified, can be inferred to be comparatively long due to the 4888 mm overall length, aiding in straight-line stability at high speeds. Both these factors combined contribute significantly to the EP9's remarkable lap times and handling precision on race tracks.

The NIO EP9’s dimensions—long, wide, and very low—tailor it primarily for track use and high-performance driving rather than everyday urban or suburban commuting. Its width of 2230 mm (87.8 inches) poses challenges in navigating narrow streets, parking lots, and tight spaces common in daily driving environments. Additionally, the very low height and likely low ground clearance make it less practical over speed bumps, potholes, or uneven roads. While the EP9 excels in delivering exhilarating driving dynamics, its size and design reduce practicality for routine driving, emphasizing that it is more of an enthusiast’s vehicle than a daily driver.