Toyota bZ3X: which version to buy and why
The Toyota bZ3X exists as 1 generation (from 2024-10-01, still in production) and 3 electric versions in one body: SUV 5-doors. There is no second generation to wait for and no restyling split in the data, so the buying choice is entirely among 50 kWh AT, 58 kWh AT, and 68 kWh AT.
The Toyota bZ3X exists as 1 generation (from 2024-10-01, still in production) and 3 electric versions in one body: SUV 5-doors. There is no second generation to wait for and no restyling split in the data, so the buying choice is entirely among 50 kWh AT, 58 kWh AT, and 68 kWh AT. All three share Electro fuel, a 1-speed Automatic, FWD, a 160 km/h top speed, 210 mm ground clearance, 0 CO2, independent spring front suspension, Semi-independent, springorts hélicoïdaux, sem rear suspension, Ventilated disc front brakes, and Disc rear brakes. Displacement, cylinders, cylinder layout, valves per cylinder, boost, engine placement, 0–100, consumption, tank, and wheel size are not measured on every version. What actually changes is battery-pack name, power, torque, kerb weight, and gross weight.
Specs compared: 50 kWh AT vs 58 kWh AT vs 68 kWh AT
| Version | hp | kW | Nm | Displacement | Fuel | Cylinders | Layout | Boost | Gearbox | Drive |
|---|---|---|---|---|---|---|---|---|---|---|
| 50 kWh AT | 204 | 150 | 200 | not measured | Electro | not measured | not measured | not measured | Automatic, 1 | FWD |
| 58 kWh AT | 204 | 150 | 200 | not measured | Electro | not measured | not measured | not measured | Automatic, 1 | FWD |
| 68 kWh AT | 224 | 164 | 210 | not measured | Electro | not measured | not measured | not measured | Automatic, 1 | FWD |
50 kWh AT and 58 kWh AT are the same motor on paper: 204 hp, 150 kW, 200 Nm. 68 kWh AT is the only version that steps up: +20 hp (224 vs 204), +14 kW (164 vs 150), +10 Nm (210 vs 200). That is about +9.8% power and +5.0% torque versus either smaller pack. There are not two versions with the same name, so you do not need a horsepower suffix to tell them apart.
Performance and economy: what is measured, what is not
Top speed is the same on all three: 160 km/h. 0–100 is not measured for 50 kWh AT, 58 kWh AT, and 68 kWh AT, so you cannot rank sprint times from this catalogue. City, highway, and mixed consumption are not measured on all three; tank capacity is not measured (electro, no fuel tank in the data). CO2 is 0 on all three.
Weight-per-horsepower (kerb ÷ hp) is a number you can compute:
- 50 kWh AT: 1690 / 204 ≈ 8.28 kg per hp
- 58 kWh AT: 1760 / 204 ≈ 8.63 kg per hp
- 68 kWh AT: 1835 / 224 ≈ 8.19 kg per hp
68 kWh AT is the lightest per horsepower despite being the heaviest car. 58 kWh AT is the worst on this ratio: it keeps the 204 hp of 50 kWh AT and adds 70 kg. Power per litre is not measured because displacement is not measured.
Dimensions and weight: the real split between versions
Ground clearance is identical: 210 mm on 50 kWh AT, 58 kWh AT, and 68 kWh AT. Wheel sizes are not measured on all three.
| Version | Kerb, kg | Gross, kg | Payload (gross − kerb), kg | Clearance, mm | Tank | Wheels |
|---|---|---|---|---|---|---|
| 50 kWh AT | 1690 | 2185 | 495 | 210 | not measured | not measured |
| 58 kWh AT | 1760 | 2185 | 425 | 210 | not measured | not measured |
| 68 kWh AT | 1835 | 2250 | 415 | 210 | not measured | not measured |
50 kWh AT is the lightest: 1690 kg kerb, 2185 kg gross, 495 kg payload. 58 kWh AT shares that 2185 kg gross but sits at 1760 kg kerb, so payload falls to 425 kg (−70 kg versus 50 kWh AT). 68 kWh AT is 1835 kg kerb (+145 vs 50 kWh AT, +75 vs 58 kWh AT) and 2250 kg gross (+65 vs the other two). Its payload is 415 kg — 80 kg less than 50 kWh AT and 10 kg less than 58 kWh AT.
Chassis hardware does not change with the pack: independent spring front, Semi-independent, springorts hélicoïdaux, sem rear, Ventilated disc front, Disc rear, FWD, Automatic 1 speed.
Which version to choose
There is only 1 generation, so “which generation” is not a fork. The fork is pack and motor.
Choose 50 kWh AT if you want the lightest bZ3X and the most payload. It matches 58 kWh AT on 204 hp, 150 kW, 200 Nm, FWD, 160 km/h, 210 mm clearance, and 2185 kg gross, but it is 70 kg lighter at the kerb (1690 vs 1760) and carries 70 kg more payload (495 vs 425). Among the three, it has the second-best kg/hp (8.28), beaten only by 68 kWh AT. If the catalogue does not give range or consumption (both not measured), the documented advantage of this version is mass and payload, not a different gearbox or drive.
Choose 58 kWh AT only if the larger pack name is the reason you are here. Mechanically it is not a stronger car than 50 kWh AT: same 204 hp, same 200 Nm, same 160 km/h, same 2185 kg gross. What you get in the numbers is +70 kg kerb and −70 kg payload. Kg per hp worsens from 8.28 to 8.63. There is no extra horsepower, no extra torque, no AWD, no higher top speed in the data to offset that mass. If two cars with the same motor and the same gross weight differ only by 70 kg at the kerb, 58 kWh AT is the heavier twin, not the faster one.
Choose 68 kWh AT if you want the only stronger motor. It is the unique step: 224 hp / 164 kW / 210 Nm versus 204 / 150 / 200 on the other two. Top speed stays 160 km/h, so the extra 20 hp does not buy a higher limiter in this dataset. You pay in mass: 1835 kg kerb (+145 vs 50 kWh AT, +75 vs 58 kWh AT) and 2250 kg gross (+65 vs both). Payload is the lowest at 415 kg. The consolation in arithmetic is kg/hp: 8.19, the best of the three, because +20 hp more than covers +145 kg versus 50 kWh AT (20/204 ≈ +9.8% power vs 145/1690 ≈ +8.6% mass) and more than covers +75 kg versus 58 kWh AT (+9.8% power vs 75/1760 ≈ +4.3% mass). Torque gain is smaller (+10 Nm, +5.0%).
Direct pairwise differences
58 kWh AT minus 50 kWh AT: power 0, torque 0, top speed 0, clearance 0, gross 0. Kerb +70 kg. Payload −70 kg. Kg/hp +0.35. Same Automatic 1, same FWD, same Electro.
68 kWh AT minus 50 kWh AT: +20 hp, +14 kW, +10 Nm, kerb +145 kg, gross +65 kg, payload −80 kg. Top speed unchanged at 160. Kg/hp improves by about 0.09 (8.19 vs 8.28).
68 kWh AT minus 58 kWh AT: same power and torque deltas versus 50 kWh AT (+20 hp, +10 Nm), but less extra mass versus the middle pack: kerb +75 kg, gross +65 kg, payload −10 kg. This is the comparison where the extra motor output most clearly outruns the extra weight.
What extra money cannot be shown to buy
Prices are not in the data, so “what the extra money buys” can only mean what the higher-named pack buys in measured specs. Versus 50 kWh AT, 58 kWh AT does not buy more hp, more Nm, a different drive, a higher top speed, or more payload. Versus 50 kWh AT, 68 kWh AT buys 20 hp, 10 Nm, and a 65 kg higher gross rating, and gives up 80 kg of payload. 0–100, mpg/consumption, tank, and wheels stay not measured on all three, so none of the versions can be ranked on those.
Reliability and problems
No reliability, recall, or problem counts are in the data. Do not infer them from weight or power. Chassis and brake labels are the same across 50 kWh AT, 58 kWh AT, and 68 kWh AT.
Short verdict
- 50 kWh AT — lightest (1690 kg), most payload (495 kg), same 204 hp as the middle pack.
- 58 kWh AT — same 204 hp and 2185 kg gross as 50 kWh AT, 70 kg heavier, 70 kg less payload; weakest kg/hp (8.63).
- 68 kWh AT — only stronger motor (224 hp, 210 Nm), best kg/hp (8.19), heaviest (1835 / 2250 kg), least payload (415 kg).
If the motor must be stronger, the version is 68 kWh AT. If the motor may stay at 204 hp, the version with the better measured mass and payload is 50 kWh AT, not 58 kWh AT.