Nio EC6

Which Nio EC6 version to buy

All four versions are Electro, Automatic with 1 speed, AWD, CO2 0, 5.4 s to 100 km/h, and 200 km/h. What changes is battery size in the version name (70 kWh vs 100 kWh) and the two power/torque steps: 436 hp / 320 kW / 610 Nm versus 544 hp / 400 kW / 725 Nm.

All four versions are Electro, Automatic with 1 speed, AWD, CO2 0, 5.4 s to 100 km/h, and 200 km/h. What changes is battery size in the version name (70 kWh vs 100 kWh) and the two power/torque steps: 436 hp / 320 kW / 610 Nm versus 544 hp / 400 kW / 725 Nm. Displacement, cylinders, cylinder layout, and boost are not measured on every version — there is no petrol engine to rate as “power per litre.” Kerb weight, gross weight, and ground clearance are not measured, so weight-per-horsepower cannot be calculated. Fuel consumption (city, highway, combined), tank size, and wheel sizes are not measured.

Use the two axes together: pack first, then output.

Choose AT 70 kWh (436 hp) if the smaller pack in the name is enough and you do not pay for the extra 108 hp (544 − 436) and 115 Nm (725 − 610). This is the lower output on the 70 kWh pack: 320 kW, 610 Nm, still AWD, still 5.4 s, still 200 km/h. Versus the other AT 70 kWh, you give up 80 kW (400 − 320) and 18.9% more torque (725 ÷ 610). Versus either AT 100 kWh, you give up the 30 kWh named gap (100 − 70), which is 42.9% more named pack energy (100 ÷ 70) with no change in the measured sprint or top speed.

Choose AT 70 kWh (544 hp) if you want the higher output without the larger pack name. Same AT 70 kWh label as the 436 hp car, distinguished only by 544 hp / 400 kW / 725 Nm. Versus AT 70 kWh (436 hp) you gain 108 hp (24.8%: 544 ÷ 436) and 115 Nm. Versus AT 100 kWh (544 hp) you have the same 544 hp, 400 kW, 725 Nm, 5.4 s, and 200 km/h; the only named difference is 70 kWh instead of 100 kWh. Versus AT 100 kWh (436 hp) you have 108 hp and 115 Nm more but 30 kWh less in the pack name — a swap of output for pack size, not a free upgrade.

Choose AT 100 kWh (436 hp) if the larger pack name matters more than the higher motor step. This version matches AT 70 kWh (436 hp) on 436 hp, 320 kW, 610 Nm, gearbox, drive, 5.4 s, and 200 km/h. What you buy is 100 kWh instead of 70 kWh. You do not buy a faster 0–100 or a higher top speed: those figures are identical. Versus AT 100 kWh (544 hp) you stay 108 hp and 115 Nm below the other 100 kWh car while sharing the same pack name.

Choose AT 100 kWh (544 hp) if you want both the larger pack name and the higher output on one line. This is the top of the arithmetic: 544 hp, 400 kW, 725 Nm, AT 100 kWh, AWD, Automatic 1, 5.4 s, 200 km/h, CO2 0. Versus AT 70 kWh (436 hp) you add 108 hp, 115 Nm, and 30 kWh in the name — and still the same sprint and top speed. Versus AT 70 kWh (544 hp) you add only the pack step. Versus AT 100 kWh (436 hp) you add only the power/torque step.

There is no fifth version and no second generation to “wait for” in this dataset. Chassis language is the same on all four: front Independent, spring, rear Independent, spring, front brakes Ventilated disc, rear brakes Disc ventilated. Those items do not break the tie.

Generations: what changed (and what did not)

1 generation is the whole catalogue: start 2019-12-01, stop not measured (null — still listed as current). Body is SUV 5-doors. Count of versions: 4. There is no restyling listed as a separate generation, so there is no “later body” to prefer.

Because there is only one generation, generation-to-generation arithmetic is empty: no later car is lighter, quicker, or more powerful in the data. All comparison is inside this generation, between the four versions above.

What did not change between versions: Electro fuel, Automatic 1-speed, AWD, 5.4 s, 200 km/h, CO2 0, independent spring suspension both ends, ventilated discs both ends. What did change: named pack (70 kWh / 100 kWh) and the two output pairs (436 hp / 320 kW / 610 Nm vs 544 hp / 400 kW / 725 Nm). The two AT 70 kWh lines and the two AT 100 kWh lines must be kept as separate anchors; renaming them would break modification links.

Nio EC6 specs and engine table

Displacement, cylinders, layout, and boost are not measured for every electric version. Gearbox and drive are measured and identical.

Power-per-litre is not measured (no displacement). The only power ratios that exist are between the two motor steps: 544 ÷ 436 = 1.248 (+24.8% hp), 400 ÷ 320 = 1.25 (+25% kW), 725 ÷ 610 ≈ 1.189 (+18.9% Nm). Pack ratio from the names: 100 ÷ 70 ≈ 1.429 (+42.9% named kWh).

Performance, mpg, and economy

0–100 km/h: 5.4 s on AT 70 kWh (436 hp), AT 70 kWh (544 hp), AT 100 kWh (436 hp), and AT 100 kWh (544 hp). Difference between any pair: 0 s. The extra 108 hp and 115 Nm do not show up as a shorter sprint in this dataset.

Top speed: 200 km/h on all four. Difference: 0 km/h.

Fuel / energy use: city not measured, highway not measured, combined not measured on all four. Do not read a blank as “this car uses nothing”; the figure was not recorded. CO2 is 0 on all four. Eco class is not measured. Tank size is not measured (electric; no fuel tank figure in the data).

mpg as a petrol number is not measured. Any economy ranking of 70 kWh vs 100 kWh from consumption tables cannot be done here.

Dimensions, weight, and clearance

Kerb weight: not measured on all four. Gross weight: not measured on all four. Ground clearance: not measured on all four. Wheel sizes: not measured on all four.

Because mass is missing, kg per hp cannot be computed for AT 70 kWh (436 hp), AT 70 kWh (544 hp), AT 100 kWh (436 hp), or AT 100 kWh (544 hp). A heavier 100 kWh pack is a common physical expectation; it is not a measured fact in this launch data, so it is not used as a number.

Suspension and brakes do not differ by version: front Independent, spring, rear Independent, spring, front Ventilated disc, rear Disc ventilated.

What the extra pack and extra power buy (no prices)

Prices are not in the data, so “extra money” is only extra named kWh and extra hp/kW/Nm.

• Pack-only upgrade: AT 70 kWh (436 hp) → AT 100 kWh (436 hp), or AT 70 kWh (544 hp) → AT 100 kWh (544 hp). You buy +30 kWh in the name (+42.9%). You do not buy more hp, more Nm, a shorter 5.4 s, or more than 200 km/h.
• Power-only upgrade: AT 70 kWh (436 hp) → AT 70 kWh (544 hp), or AT 100 kWh (436 hp) → AT 100 kWh (544 hp). You buy +108 hp, +80 kW, +115 Nm. You do not buy a larger pack name, a shorter sprint, or a higher top speed.
• Both upgrades: AT 70 kWh (436 hp) → AT 100 kWh (544 hp). You buy the pack step and the motor step together. Sprint and top speed still match the cheapest-spec line in this table.

If the decision is “I need the larger pack name,” take AT 100 kWh (436 hp) or AT 100 kWh (544 hp) and ignore the 70 kWh pair. If the decision is “I need the 544 hp step,” take AT 70 kWh (544 hp) or AT 100 kWh (544 hp) and ignore both 436 hp lines. If neither axis is required, AT 70 kWh (436 hp) already has the same AWD, Automatic 1, 5.4 s, 200 km/h, and CO2 0 as the rest.

Reliability and problems

No reliability scores, failure rates, or problem lists are in the launch data. They are not measured. Do not infer durability from generation count: there is 1 generation and 4 versions, all listed from 2019-12-01 with no stop date.

Short chooser

1 generation, SUV 5-doors, four Electro AWD automatics. The catalogue does not pick a winner on acceleration or top speed; those are tied. The only measured forks are 70 kWh vs 100 kWh in the version name and 436 hp / 610 Nm vs 544 hp / 725 Nm.