The Xiaomi SU7 has one generation and two AT versions. This piece is a buyer's comparison: what the extra power, drive, and mass actually change, and which AT fits which use.
The Xiaomi SU7 is in 1 generation from 2023-11-01, still in production (stop is not set). Body type: Sedan. There are 2 versions, both named AT in the catalogue. They must be kept as AT and separated by output: AT 299 hp and AT 673 hp. There is no second generation and no restyling block in the data, so the choice is only between these two AT cars.
The Xiaomi SU7 has one generation and two AT versions. This piece is a buyer's comparison: what the extra power, drive, and mass actually change, and which AT fits which use.
Which Xiaomi SU7 version to buy
The Xiaomi SU7 is in 1 generation from 2023-11-01, still in production (`stop` is not set). Body type: Sedan. There are 2 versions, both named AT in the catalogue. They must be kept as AT and separated by output: AT 299 hp and AT 673 hp. There is no second generation and no restyling block in the data, so the choice is only between these two AT cars.
Both use Electro power, Electro fuel, an Automatic gearbox with 1 speed, and 0 CO2. Cylinders, cylinder layout, valves per cylinder, boost, engine layout, and displacement are not measured on either AT. Torque (Nm) is not measured. 0–100 km/h is not measured. City / highway / combined consumption and tank size are not measured. Ground clearance and wheel sizes are not measured. Gross vehicle weight is not measured.
What is measured, and what you are actually choosing:
| Version (exact name) | hp | kW | Nm | Displacement | Fuel | Cylinders | Layout | Boost | Gearbox | Speeds | Drive | Top speed | Kerb weight |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| AT (299 hp) | 299 | 219 | not measured | not measured | Electro | not measured | not measured | not measured | Automatic | 1 | FWD | 210 | 1980 |
| AT (673 hp) | 673 | 494 | not measured | not measured | Electro | not measured | not measured | not measured | Automatic | 1 | AWD | 265 | 2205 |
Generations: what changed (and what did not)
1 generation (from 2023-11-01, current): Sedan, 2 modifications, both AT. There is no later generation in the data, so you cannot “buy the newer generation” of SU7. The gap is inside one generation: FWD vs AWD, 299 hp vs 673 hp, 210 vs 265 km/h top speed, 1980 vs 2205 kg kerb weight.
Chassis language is the same on both AT cars: front Independent, spring; rear Independent, spring; front brakes Ventilated disc; rear brakes Disc. Buying the stronger AT does not buy a different suspension or brake type in this catalogue.
Specs that actually differ between the two AT versions
Power. AT at 673 hp is 374 hp above AT at 299 hp (673 − 299). In kW: 494 − 219 = 275 kW. That is more than double: 673 / 299 ≈ 2.25× the listed horsepower.
Power per litre cannot be computed: displacement is not measured on both AT versions. Do not invent a litre figure to rank them.
Drive. AT 299 hp is FWD. AT 673 hp is AWD. That is the only drivetrain fork in the model. If you need all-wheel drive, the catalogue has one answer: the AT with 673 hp. If you want front-wheel drive, the catalogue has one answer: the AT with 299 hp.
Top speed. AT 673 hp is limited/rated at 265 km/h; AT 299 hp at 210 km/h. Difference: 55 km/h (265 − 210).
Weight. Kerb: 1980 kg (AT 299 hp) vs 2205 kg (AT 673 hp). Extra mass on the stronger car: 225 kg (2205 − 1980). Gross weight is not measured for either, so payload is not a number you can compare here.
Weight per horsepower (kerb kg per hp, from these figures only):
- AT 299 hp: 1980 / 299 ≈ 6.62 kg/hp
- AT 673 hp: 2205 / 673 ≈ 3.28 kg/hp
The heavier AT is still much lighter per horsepower: about 3.34 kg/hp less (6.62 − 3.28). The extra 225 kg does not cancel the extra 374 hp on this arithmetic.
CO2. Both AT versions: 0. There is no emissions trade-off between them in the data.
Gearbox. Both Automatic, 1 speed. You are not choosing a different number of gears.
Performance and economy: measured vs not measured
0–100 km/h: not measured on AT 299 hp and not measured on AT 673 hp. Do not rank sprint times from this file. The only speed figure you can compare is top speed: 210 vs 265 km/h.
Fuel / energy use: city not measured, highway not measured, mixed not measured on both AT versions. There is no mpg (or equivalent) ranking. Tank size is not measured — expected for Electro, but the field is still empty, so it is stated as not measured, not assumed.
Torque: not measured. You cannot compare “pull” in Nm.
So the performance choice that is in the data is: more listed power, AWD, and +55 km/h top speed on the 673 hp AT, against +225 kg kerb weight.
Dimensions and weight (what you can and cannot size)
- Kerb weight: 1980 kg (AT 299 hp) vs 2205 kg (AT 673 hp).
- Gross weight: not measured / not measured.
- Ground clearance: not measured / not measured.
- Tank: not measured / not measured.
- Wheels: not measured / not measured.
If your decision depends on clearance, tyre size, or GVW, this catalogue does not give those numbers for either AT.
Which version to choose
Choose AT 299 hp (FWD) if you want the lighter Xiaomi SU7 Sedan in 1 generation. You get 299 hp / 219 kW, FWD, Automatic 1-speed, top speed 210 km/h, kerb 1980 kg, CO2 0. You give up AWD and 374 hp. You also sit at the worse kg/hp ratio (~6.62 vs ~3.28). This is the only FWD AT.
Choose AT 673 hp (AWD) if the numbers you care about are power, drive, and top speed. You get 673 hp / 494 kW, AWD, the same Automatic 1-speed layout, top speed 265 km/h, kerb 2205 kg, CO2 0. You pay 225 kg extra kerb mass for more than double the listed horsepower and the only AWD in the line. Rear brake type stays Disc; front stays Ventilated disc; suspension type stays Independent, spring front and rear — so you are not buying a different chassis label.
There is no generation choice. Production of 1 generation starts 2023-11-01 and has no `stop` date in the data. Both AT versions share that start date. “Newer generation” is not a filter you can apply.
What extra outlay cannot be priced here. Prices are not in the data, so “what the extra money buys” is only the spec delta: +374 hp, FWD → AWD, +55 km/h top speed, +225 kg kerb. Economy, 0–100, Nm, tank, clearance, and wheels remain not measured on both, so they cannot justify either AT.
Reliability / problems: not in this dataset. Do not infer durability from power or weight.
Short rule: need AWD or the 673 hp figure — take AT 673 hp. Need the lighter FWD Sedan — take AT 299 hp. Same generation, same body, same gearbox type and speed count, same Electro fuel, same 0 CO2; the fork is power, drive, top speed, and 225 kg.