@CMRDNOOB and @siningli688 almost every chinese car review i saw, including ones about this, say that the brakes are not good. Any idea on why most chinese cars have bad brakes?
Xiaomi SU7 Ultra specs
| Price in Europe | €152,000 - €153,500 |
| Car type | 4-door saloon |
| Curb weight | 2360 kg (5203 lbs) |
| Dimensions | 5.12 m (201 in) long, 1.97 m (78 in) wide, 1.47 m (58 in) high |
| Wheelbase | 3.00 m (118 in) |
| Introduced | 2025 |
| Origin country | China |
| Tyres | Pirelli P Zero Trofeo RS |
| Views | 14.4k |
| Submitted by | humana |
Lap times
Performance
| 0 - 60 kph | 1.4 s |
| 0 - 100 kph | 2.4 s |
| 0 - 110 kph | 2.6 s |
| 0 - 130 kph | 3.2 s |
| 0 - 150 kph | 3.8 s |
| 0 - 160 kph | 4.2 s |
| 0 - 180 kph | 5.1 s |
| 0 - 200 kph | 5.7 s |
| 0 - 220 kph | 7.2 s |
| 0 - 240 kph | 8.5 s |
| 0 - 260 kph | 10.2 s |
| 0 - 280 kph | 12.2 s |
| 0 - 300 kph | 15.2 s |
| 1000 m | 16.8 s |
| 60 - 160 kph | 2.8 s |
| 100 - 200 kph | 3.3 s |
| 200 - 300 kph | 8.1 s |
| 1/8 mile | 6.0 s @ 127.2 mph |
| 1/4 mile | 9.0 s @ 157.2 mph |
| 1/2 mile | 14.5 s |
| Top speed | 360 kph (224 mph) |
| 100 kph - 0 | 35 m (114 ft) |
| 300 kph - 0 | 279 m (915 ft) |
Powertrain specs
| Engine type | 3 electric motors |
| Power | 1547 ps (1526 bhp / 1138 kw) @ 7200 rpm |
| Torque | 1770 Nm (1305 lb-ft) |
| Power / weight | 656 ps (647 bhp) / t |
| Torque / weight | 750 Nm (553 lb-ft) / t |
| Power / €5000 | 51 ps |
| Transmission | direct drive |
| Layout | rear engine, all wheel drive |
SU7 Ultra competition
More Xiaomi cars 2
Lello75 6d ago
CMRDNOOB 6d ago
I think recently this the wave of this 'Chinese cars brake bad' critics starts from a Chinese car reviewer crashed the SU7 in track use with its stock brake, and made a critics in his video, which went viral. The point is, it only took half a lap to wear the whole pad out, the reviewer think it's unacceptable, even if the stock brake is not meant for track use, since no other cars can wear the brake this fast, not that he known of, especially for a car that's this heavy and this powerful, this is dangerous.
Then SU7 soon had more track resist brake pad as optional, and retuned the regen braking to make it more effective to alleviate the stress of the brake. After that this 'braking bad' critics soon calms down.
To be fair, SU7 as I sad, has the reputation similer to Mustang+BMW+Civic, but with all those incidents from reckless driving on the road, havent heard anyone of them are caused by brake fade.
I havnt see any review mention that SU7U's brake is not good, really is quite the opposite, since its got carbon ceramic as standard.
siningli688 5d ago
As @CMRDNOOB pointed out, the SU7 Max has stirred up quite a bit of controversy. However, it isn’t a track-focused car; it’s simply a high-horsepower family car that isn't built for the sustained high-intensity demands of circuit driving. If you’re arguing that the SU7 Ultra's brakes are subpar—I personally find its braking points in the simulator to be excessively early. But that’s primarily because the car carries immense speed at the end of the straights and is quite heavy. If you’re going to pit it against an industry benchmark like the 911 GT3, it simply stands no chance.
JustSomeDude 5d ago @CMRDNOOB
Yeah most standard road cars use semi metallic pads, which are quite "soft" and easy wearing.
In terms of heavy driving you'll often find these are good for a high speed emergency stop one maybe twice in one session, that's about it, they'll go spongey and overheat on many normal cars these days. Half a lap on any car with pads like these are subject to fade, and the heavier the car gets the more this is accelerated in wear as the brakes need to work harder. You can compensate this with more pots and wider pads/discs but ultimately it's a bit of a bottleneck as the pad material heats up really fast.
So the tl;dr of this is the reviewer that complained about stock brakes was essentially almost an idiot in this regard by the sounds of it lol. Tracking a road car with road hardware is almost the same as playing stupid games and winning stupid prizes. They simply didn't know better, and they experienced something that only really happened because the car was so heavy and fast, it all added up too quickly. Dunno who they are or what they're like, but the hindsight kinda speaks for itself there for those who do know.
If this adds to your understanding @Lello75 I'm glad. It's a really interesting topic.
07CorvetteZ51 5d ago @JustSomeDude
I agree that most street brake pads are unsuited to track use. Before taking the Corvette to the track it needs better brake pads, I plan on using Carbotech XP10 front, XP8 rear. There will be some squeel, and brake dust, but they won't overheat on track days.
CMRDNOOB 3m ago
https://www.bilibili.com/video/BV1Bbf1BTEFK
SU7U VS. 992GT3RS VS. 296GTB at the RING with 3 pro drivers. The ENG sub version could be on YT soon.
CMRDNOOB 5m ago
https://www.bilibili.com/video/BV1fdmqBxER6
XIAOMI SU7U VS. YANGWANG U9 VS. MAEXTRO S800, featuring Richard hammond, basically a love letter from Chinese cars fans to Top Gear.
With ENG sub, seems will also be online on DRIVETRIBE soon.
Vette4Life 5m ago
Is it me or does it really feel like this car relies on raw power than grip? I get China is becoming advanced but you can’t hide 5,000+ pounds. Cayenne Turbo GT got a 7:38 and I believe that’s 4800 or so, can’t remember off the top of my head.
CMRDNOOB 6m ago
https://www.youtube.com/watch?v=QBHwMl6xalM
Taycan TGT Wei Pkg. VS. Emeya R+ VS. SU7 Ultra VS. AUDI E5 at Guangdong Racing International Circuit(Ma Chong)
Price at China: 2M￥ VS. 1M￥ VS. 500K￥ VS. 300K￥
Tires are all Tempesta P1+.
Laptimes:
Taycan TGT Wei Pkg. 58.22s
Emeya R+ 1:00.30s
SU7 Ultra 59.67s
AUDI E5 1:02.05s
Review:
TGT obviously is the best around the track, the handling and the confidence is phenomenal, the electrical control's logic is both meticulous and aggressive for the most output of performance at every aspect, it does require some level of driving skill, but once you got it, it maybe the best EV or porsche you could have.
Emeya R+ also have a great tuned suspesion at the edge, but it's too heavy compair to others (2.6t+), so the cornering speed is not that fast, and the brake fade is really bad if without the optional carbon ceramic brake. It is not really suit for serious track use.
SU7U is clearly more conservertive and less meticulous at electrical control logic compair to the Taycan TGT, so the car's launch and brake is not as good, also the cornering shows way more understeer, quite opposite to porsche, their logic is really dont want you to crash. Their advantage is the power and simply a better car over porsche in everyway besides on track, and way cheaper.
AUDI E5 actually is the fastest at low speed corners due to bigger angle on rear wheel steering than others, so more nimble, and the chassis is quite promising around the track, the problem is the car isnt really considering track use, so no track mode, the control logic simply is not for the limit, like the rear wheel steering make the car too cumbrous at high speed corner, for it only aims for stability at high speed, and no rwd mode for drifting or heavy regen braking for track use.
Lello75 8m ago
https://www.instagram.com/reel/DOoko8lCOi2/?igsh=OWZ6eWhoZzd6dGpp
Imagine crashing an AWD electric car in a straight line.
CMRDNOOB 9m ago
https://www.youtube.com/watch?v=lWZwaEwzhoo
Another large-scale test conducted by DCAR that was even more controversial, particularly the highway portion. Instead of controlling the distance to the vehicle ahead, they set all settings to medium, allowing the car's ADAS to make its own decisions.
Before, any company that performed poorly would likely protest on social media at least, or even take legal action. However, this time, with the partial backing of the Ministry of Public Security and official media (otherwise, how can they have booked an entire highway and a district of a city for a week), every automaker was surprisingly quiet and compliant after the results. Some state-owned automakers that didn't participate even praised the test on social media. Only Huawei, after two days of silence, abruptly announced on social media that its legal department "have no comment" on a particular test. Since Huawei's ADAS is generally recognized in China as being the closest to Level 3 autonomous driving, many Huawei fanboi believe this was a targeted sabotage attempt.
Officially, the ADAS system is still Level 2 assisted driving. However, due to widespread irregular publicity and overly aggressive, even blatantly traffic-violating calibration of ADAS by various automakers, many drivers have begun mistaking it for true autonomous driving, leading to numerous accidents. This test is intended to cool down public opinion. However, perhaps due to the heavy controversy surrounding the test, official media quickly deleted the joint statement, only stating the point by quoting it. Presumably, this is due to significant pressure, officials may be concerned that public opinion would be too shocked and question the development of autonomous driving.
gt 10m ago
Failed the idr EV record at the ring you get two more shots pikes peak and tianmen climb https://www.youtube.com/watch?v=HvdU6kYDwTY
