BYD used the Paris Motor Show to put a date on its city driving assistance in Europe: 2027, delivered over the air, starting with the Denza Z9 GT. Every Z9 GT sold in Europe already carries the lidar, cameras and radars the system needs. What it does not yet have is a type approval under UN Regulation 171, and BYD says that approval decides the launch.
What Denza announced
Denza, BYD's premium brand, said on 12 October that City Navigation on Driving Assistant, the urban tier of BYD's God's Eye system, will be released to European Z9 GTs in 2027, according to the announcement carried by Automotive World. The function drives point-to-point city routes: it stops at red lights, gives way at roundabouts, turns left across traffic, keeps to speed limits and moves around double-parked vehicles. The driver remains responsible throughout. It is a Level 2 system, the same class as Tesla's FSD (Supervised). BYD executive vice-president Stella Li said: "This technology will help make city driving less stressful, from traffic jams to busy intersections."
The software is in what BYD calls advanced calibration ahead of type approval under UN Regulation 171, the United Nations rule for driver-assistance systems that steer and change lanes under supervision. BMW was the first carmaker approved under it, in November 2025, and that one certificate covers its hands-off motorway assistant in 18 European markets. Denza is asking for the same thing with a city function rather than a motorway one. It has not said whether every manoeuvre on its list is part of the application.
CarNewsChina reports that the Chinese Z9 GT runs BYD's own Xuanji A3 chip at about 700 TOPS, and that the Atto 8, the seven-seat SUV BYD showed in Paris, is expected to follow. BYD says the function will spread across the Denza range.
How it lines up against Tesla
| Denza Z9 GT | Tesla Model Y / Model 3 | |
|---|---|---|
| City assist in Europe | CNOA, 2027, over the air | FSD (Supervised), on sale now |
| Where it is legal | Nowhere yet; UN R171 approval pending | Eight EU countries, via a Dutch provisional approval |
| Sensors | 1 lidar, 11 cameras, 3 radars, 12 ultrasonic | 8 cameras |
| Price of the car | about €115,000 | from €39,990 (Model Y Standard, Germany) |
Tesla got there first, by a different road. FSD (Supervised) is approved in eight countries: the Netherlands, Belgium, Denmark, Lithuania, Estonia, Slovenia, Czechia and Croatia. All of them rest on the Dutch RDW's provisional approval, which other member states adopt by letter under Article 39(5) of the EU type-approval regulation. An EU-wide decision needs a qualified majority in a committee that next meets in December. A full UN R171 approval, if Denza obtains one, is the route BMW used to put a hands-off assistant in 18 markets without a national exemption.
The Z9 GT itself is not a Model Y rival. TeslAnt drove the numbers in August: about €115,000, 2.9 tonnes and roughly 400 km of real highway range. The announcement matters because of what follows it, in the Atto 8 and the rest of the Denza range, and because of who else is on the same timetable. XPeng, which brought two L03s with its NGP system to the show's autonomous-driving lab alongside Tesla, plans to launch NGP in Europe in the first quarter of 2027, Forococheselectricos reports.
What it means
For a Tesla owner in Europe, nothing changes in 2026. For the market, the announcement says two things. First, the Chinese makers' city systems are coming on the UN's approval timetable rather than through national exemptions: XPeng has said early 2027 and Denza now says 2027. Second, the sensor argument is about to be tested on European roads under the same supervision rules: a Denza with a lidar, three radars and eleven cameras against a Tesla with eight. The first comparison will be at the top of the market, where a Z9 GT costs nearly three Model Y Standards. The Atto 8 is where it starts to matter.