# Xiaomi Pengcheng Details Low-Drag Aerodynamics for N90 Full-Size SUV

Xiaomi Pengcheng outlined the aerodynamic design of its N90 series full-size extended-range SUV, with the N90 Max reaching a drag coefficient of Cd 0\.255 and the N90 Max Explorer Edition achieving Cd 0\.245, which the company says is the lowest among large extended-range SUVs\.

By China EV Signal
Published: 2026-10-09T14:03:51.923Z
Updated: 2026-10-09T14:03:51.925Z
Canonical article: https://chinaevsignal.com/news/xiaomi-pengcheng-n90-low-drag-aerodynamics

## Key takeaways

- The Xiaomi Pengcheng N90 series is a full-size extended-range SUV measuring over 5 meters long and close to 2 meters wide\.
- Xiaomi Pengcheng N90 Max has a drag coefficient of Cd 0\.255, while N90 Max Explorer Edition reaches Cd 0\.245, described as the lowest among large extended-range SUVs\.
- Xiaomi Pengcheng ran over 3,400 simulation calculations, seven rounds of model and full-vehicle wind tunnel tests, and over 140 aerodynamic optimization measures for the series\.

## N90 Series Aerodynamic Targets

Xiaomi Pengcheng's N90 series is a full-size extended-range SUV with a body length of over 5 meters and a width close to 2 meters\. The N90 Max has a drag coefficient of Cd 0\.255, while the N90 Max Explorer Edition reaches Cd 0\.245, which the source describes as currently the lowest among large extended-range SUVs\.

To achieve these figures, Xiaomi Pengcheng carried out more than 3,400 simulation calculations and seven rounds of model and full-vehicle wind tunnel tests, developing over 140 aerodynamic optimization measures for the vehicle\.

## Front and Body Drag-Reduction Measures

The active grille shutter, standard across the range, reduces drag by 25 counts and adds 12\.5 km of range\. The pebble-shaped lidar contributes a 5-count reduction and 2\.5 km of added range\.

Low-drag wheels cut 10 counts and add 5 km of range, while frameless mirrors reduce drag by 4 counts and add 2 km\. Semi-hidden door handles and front bumper air curtains each lower drag by 2 counts and add 1 km of range\.

## Roof and Rear Aerodynamic Features

The 'negative drag' lifting roof reduces drag by 10 counts\. The tail-light airflow guide design alone lowers drag by 5 counts\.

## Underbody Optimization

Xiaomi Pengcheng applied more than 30 local optimization measures to the underbody, covering 23 shield panels and fairings\. The complete underbody solution spans 4\.59 square meters and keeps underbody flatness variation to around 15 mm\.

The full underbody package reduces vehicle drag by 25 counts and directly adds 4\.95 km of range to the N90 Max\.

## Company coverage

- [Xiaomi news](https://chinaevsignal.com/manufacturers/xiaomi)

## Original publisher

小米澎程. Published: 2026-10-09T07:00:00.000Z