Nio EP9: The Electric Vanguard

In the mid-2010s, the automotive industry was slowly waking up to the performance potential of electric vehicles (EVs). Tesla had proven that EVs could be blindingly fast in a straight line, but traditional motorsport enthusiasts remained skeptical. EVs were considered too heavy, prone to battery overheating, and fundamentally incapable of sustained, high-G track performance.

A brand-new Chinese startup named Nio (known as NextEV at the time) decided to shatter that stereotype completely. They wanted to announce their arrival on the global stage not with a sensible electric sedan, but with an uncompromising, track-only hypercar designed to break records.

That car was the Nio EP9 (Electric Performance 9). Unveiled in late 2016 at the Saatchi Gallery in London, it was a terrifyingly capable machine that utilized technology derived directly from the inaugural seasons of the Formula E racing championship.

The Powertrain: One Megawatt

The defining feature of the EP9 is its monstrous electric powertrain. It does not use a central motor or a traditional differential. Instead, the EP9 is equipped with four independent electric motors, one mounted inboard at each wheel. Each motor is paired with its own individual gearbox.

This setup allows for absolute, true torque vectoring. The car’s central computer can control the exact amount of torque—positive or negative—sent to each individual wheel, up to 200 times per second.

The combined output of these four motors is exactly 1 Megawatt of power. In traditional automotive terms, that equates to 1,341 horsepower (1,360 PS). The total torque output at the wheels is a tectonic 6,334 Nm (4,671 lb-ft).

Interchangeable Batteries

The Achilles’ heel of any electric track car is weight and charging time. To mitigate this, Nio engineered a bespoke carbon-fiber chassis (built to FIA LMP1 safety specifications) with a unique battery architecture.

Instead of a massive, heavy “skateboard” battery pack bolted to the floor (which takes hours to charge), the EP9 features two separate lithium-ion battery packs housed within the massive carbon-fiber side sills.

These battery packs are swappable. In the pit lane, a mechanic can unlatch the side pods and completely replace the depleted batteries with fully charged units in just eight minutes, allowing the car to return to the track immediately. If swapped batteries aren’t available, the car can be rapid-charged in just 45 minutes.

Despite the massive motors and batteries, the extensive use of carbon fiber keeps the curb weight to 1,735 kg (3,825 lbs)—heavy for a race car, but relatively light for an EV hypercar.

Aerodynamics: 24,000 Newtons

To achieve the cornering speeds Nio desired, the EP9 required a colossal amount of aerodynamic downforce to stick the heavy chassis to the road.

The entire body is a study in airflow management. The front features a massive adjustable splitter. But the true magic happens underneath the car. The EP9 features full-length aerodynamic ground-effect tunnels that accelerate air from the front of the car to the massive rear diffuser.

Combined with an active rear wing that can adjust its angle dynamically (offering three positions: Park, Low Drag, and High Downforce), the EP9 generates 24,000 Newtons (roughly 2,447 kg or 5,395 lbs) of downforce at 240 km/h (150 mph).

To put that into perspective, the EP9 generates roughly double the downforce of a contemporary Formula 1 car. This allows the car to corner at a brutal 3.0 Gs, requiring the driver to possess significant neck strength to simply hold their head upright in high-speed bends.

Shattering the Nürburgring

Nio didn’t just claim these numbers; they proved them on the most difficult race track in the world: the Nürburgring Nordschleife.

In October 2016, the EP9 set an electric vehicle lap record of 7:05.12. But Nio wasn’t satisfied. They returned to the Green Hell in May 2017 with bespoke racing slick tires and ideal weather conditions.

Driven by Peter Dumbreck, the EP9 completed the 20.8-kilometer circuit in an astonishing 6 minutes and 45.90 seconds.

At the time, this did not just shatter the EV record; it made the Nio EP9 the fastest non-series production car in the history of the Nürburgring, beating the gasoline-powered Pagani Zonda R and Radical SR8LM.

An Exclusive Showcase

Nio initially built just six examples of the EP9. These were not sold to the public; they were given to the original investors of the company (including the founders of Tencent and Xiaomi) at a reported cost of $1.2 million each to build. Later, Nio announced a limited run of 10 additional cars made available to the general public for $3 million each.

Because it lacks airbags, standard crash structures, and road-legal tires, the EP9 is strictly a track toy. However, its true purpose was to serve as a high-speed billboard for Nio’s technological capabilities. It successfully legitimized the brand overnight, proving that Chinese automotive engineering could not only compete with European hypercar manufacturers but, in the realm of electric performance, completely dominate them.