Xiaomi appears to be developing a more aggressive version of the SU7 Ultra, with prototypes spotted testing at the Nürburgring wearing extensive aerodynamic changes. The updates could help the 1,548-horsepower tri-motor electric sedan challenge the Porsche Taycan Turbo GT Manthey, which recently took the production executive EV lap record from Xiaomi.

The test cars feature a substantially revised exterior that appears closer to Xiaomi’s original record-setting SU7 Ultra Prototype than the current road-going model. The changes are most visible at the front and rear, where additional aerodynamic hardware could generate significantly more downforce.

Revised front-end aerodynamics

At the front, the prototypes have a redesigned bumper with a large splitter and separate aerodynamic skirts on both sides. Louvers have also been added above the front wheels, while the cars feature prominent side skirts.

The prototypes may also include brake-related changes. In some of the testing images, the SU7 Ultra’s large carbon-ceramic discs appear to be glowing red, although the source does not confirm whether the braking hardware itself has been upgraded.

Large rear wing and diffuser

The most dramatic change is at the rear, where Xiaomi is testing a twin-plane wing mounted on large swan-neck supports. Its size is comparable to the wing used on the Porsche 911 GT3 RS.

The wing also appears to include the hardware required for an active drag-reduction system, although that feature cannot be confirmed from the images. If fitted, such a system could open one of the wing’s elements to reduce drag and help improve top speed when maximum downforce is not required.

A redesigned diffuser is also visible beneath the rear bumper. It appears to be made from carbon fiber and resembles the diffuser available for the Porsche Taycan Turbo GT through Manthey. Working with the larger rear wing, it could help increase aerodynamic load over the rear wheels.

Possible mechanical changes

Xiaomi may pair the new aerodynamic package with mechanical revisions. The added downforce would likely require suspension changes, while the company could also increase the car’s power output.

Xiaomi has previously displayed a quad-motor powertrain producing 2,054 horsepower, but that setup has not yet been used in a production model. The source suggests a more extreme SU7 Ultra could potentially become the first production application, though Xiaomi has not confirmed that plan.

The current SU7 Ultra previously held the Nürburgring production-car lap record for an executive electric vehicle before the Porsche Taycan Turbo GT Manthey surpassed it earlier this year. The new prototypes indicate that Xiaomi is exploring a substantial response, but their final specifications and production status remain unconfirmed.