Xiaomi is testing more than one version of its high-performance SU7 Ultra at Germany’s Nürburgring. Alongside a camouflaged prototype fitted with a large fixed rear wing, new spy images show a second car using the regular body configuration and a less aggressive aerodynamic setup.

Two aerodynamic configurations under testing

The wingless prototype does not feature the optional track package’s giant motorsport-style spoiler or its more aggressive rear diffuser. Instead, it appears to use the standard SU7 Ultra’s active rear spoiler, which rises from the trunk lid above 50 mph (80 km/h) to generate additional downforce.

There are no obvious exterior differences between this test vehicle and the SU7 Ultra currently on sale. However, the prototype could still include changes beneath the bodywork. The source material indicates that Xiaomi may be exploring additional power, although no such update has been confirmed.

SU7 Ultra’s existing Nürburgring record

The current SU7 Ultra already uses a triple-motor electric powertrain with one motor at the front axle and two at the rear. Its output is listed at 1,526 horsepower (1,547 PS; 1,139 kW), helping the sedan set a production EV lap record at the Nürburgring in 2025 with a time of 7:04.957.

That run placed the Xiaomi ahead of the Porsche Taycan Turbo and the Rimac Nevera at the time. Xiaomi has also previously demonstrated a quad-motor EV platform with the same stated output figure, suggesting that higher-output technology remains under consideration. A quad-motor arrangement may instead be reserved for a future coupe, however.

Porsche raises the benchmark

Porsche has since reclaimed the production electric vehicle lap record with a performance package developed with Manthey for the Taycan Turbo GT. The package adds more aggressive aerodynamic components, wider-track arch extensions and a modest power increase.

The Manthey-equipped Taycan Turbo GT recorded a 6:55.553 Nürburgring lap in May, beating Xiaomi’s previous benchmark. The car remains eligible for the production-car record because the upgrade is available through Porsche dealers, while Porsche also holds a stake in the Nürburg-based motorsport company.

Xiaomi’s testing of both a high-downforce SU7 Ultra and a wingless version suggests the company is evaluating more than one route back to the top of the Nürburgring standings. Whether the regular-looking prototype receives mechanical changes, or whether Xiaomi ultimately uses the more extreme aerodynamic package, has not been confirmed.