The tire-blistering SU7 Ultra has been the Xiaomi brand’s flagship super sedan since its launch, but a controversial software setting has limited the car to “just” 900 hp in regular driving – resulting in an outcry from owners who ponied up for the big boy numbers. With its latest software update, that missing 648 hp is back on tap!

The SU7 Ultra made waves throughout the performance car world when a bright yellow striped example lined up alongside a white quarter mile king, the 1,000+ hp Tesla Model S Plaid, and promptly smoked it.

That wasn’t all. A preproduction SU7 Ultra prototype lapped the legendary Nürburgring circuit in just 6 minutes and 46.874 seconds, firmly stamping the 1,500+ hp Xiaomi’s alphanumeric into the track’s record books with a time nearly fifteen seconds quicker than a Rimac Nevera or, on the ICE front, either a Corvette ZR1, Viper ACR, or Porsche 918 (take your pick).

It’s hardly any wonder, then, that the customers who signed up – in droves, too – were disappointed to learn that the SU7 they were allowed to buy had been neutered by the safety nannies to the tune of nearly 650 hp. (!)

We’re so back

The outrage from SU7 Ultra owners was immediate. And, facing mounting pressure online and on social media, Xiaomi ultimately decided to withdraw the performance-limiting features while acknowledging the need for more transparent communication about future software updates they messed up, saying in a statement, “we appreciate the passionate feedback from our community and will ensure better transparency moving forward.”

So, rich people can rocket themselves down the road in 9 second hypercars again and all is right with the world. A happy ending – but one that sort of illuminates a fresh set challenges for automakers peddling “software-defined vehicles” to a market that still thinks of their cars as very much hardware defined products.

That’s evidenced by the resistance to pay for features by subscription and complaints by more informed customers that “software locked” range and convenience features just subsidize the cost of more expensive trim levels and pad profits for manufacturers and suppliers.

The new reality is playing out in real time now, and the Jeff Bezos-backed $20,000 electric compact pickup from Slate Auto is going the other way entirely – time will tell whether more, or less tech is the answer.

SOURCE | IMAGES: Xiaomi, via CarNewsChina.

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