BYD's 1,000-HP 'Porsche Killer' Has a Terrifying Flaw at 124 MPH
Ambition Meets Asphalt
Chinese automaker BYD is making a bold play for European luxury buyers through its premium sub-brand Denza. The latest offensive weapon is the Z9 GT, a grand tourer packing incredible technology and an opulent cabin. On paper, this machine is a staggering achievement. Boasting near 1,000 horsepower in its electric guise, it delivers eye-watering acceleration that puts traditional sports cars on notice. Plus, it has one of the longest ranges of any EV, making it a formidable road-trip companion.
The cabin features an immersive audio system, digital mirrors, and high-end massaging seats. It is an impressive technological showcase. However, luxury and gadgetry only tell half the story when a brand attempts to rival the legacy of Mercedes-Benz, BMW, and Porsche.
Autobahn Anxiety
The ultimate proving ground for any premium vehicle in Europe is the German autobahn. Here, speed limits vanish, and the true character of a chassis reveals itself. In a report from Automotive News, during a recent test drive departing from Hamburg, the Z9 GT showed a glaring vulnerability at high velocities.
Approaching 124 miles per hour, a speed where German sedans typically feel glued to the tarmac, the Denza exhibited an unsettling floatiness. Instead of the rock-solid composure expected from a six-figure vehicle, the grand tourer felt nervous and wobbly. The steering lacked the surgical precision required to inspire confidence during sustained high-speed cruising. If an international superspy were behind the wheel during a high-speed chase, James Bond might need to return his car to Q for repairs simply to get the suspension sorted.
The Lowdown
Denza executives assert that BYD is a technology firm that builds cars. However, creating a dynamic chassis requires decades of mechanical refinement, not just sophisticated software. Buyers are paying top dollar. The Denza D9 isn't selling for cheap in Europe, and neither is the Z9 GT, which carries a staggering $135K price tag. While this nervous handling might never be exposed on heavily regulated roads in the United States, it stands out like a sore thumb in Germany. A vehicle built for grand touring must excel at triple-digit stability.
If Denza wants to dethrone the European establishment, the brand must return to the engineering drawing board. The powertrain is phenomenal, and the interior is world-class. Yet, until the suspension geometry and damping are rigorously recalibrated for sustained high speeds, this grand tourer will remain a rapid computer rather than a true driver's car. The big boys of Europe have perfected the art of the high-speed cruise. Denza needs to master that very same dark art before claiming the luxury crown.
Copyright 2026 The Arena Group, Inc. All Rights Reserved.
This story was originally published June 12, 2026 at 4:45 AM.