Toyota Sera: which version to buy
Between the two Toyota Sera versions in the data, the choice is not about engines. 1.5 MT and 1.5 AT share the same 1496 cm³ Gasoline inline 4, 110 hp (81 kW) at 6400 rpm, 132 Nm at 5200 rpm, compression 9.8, 74 × 87 mm bore and stroke, multi-point injection, no boost, front transverse layout, FWD, 40-litre tank, and 145 mm ground clearance.
Between the two Toyota Sera versions in the data, the choice is not about engines. 1.5 MT and 1.5 AT share the same 1496 cm³ Gasoline inline 4, 110 hp (81 kW) at 6400 rpm, 132 Nm at 5200 rpm, compression 9.8, 74 × 87 mm bore and stroke, multi-point injection, no boost, front transverse layout, FWD, 40-litre tank, and 145 mm ground clearance. What changes is the gearbox and kerb weight: 1.5 MT is a 5-speed Manual at 910 kg; 1.5 AT is a 4-speed Automatic at 950 kg. That 40 kg is the only mass difference the catalogue records, and it is the number that should decide the purchase.
There is one generation (1990-03-01 to 1995-12-31, Coupe, two versions). Both listed versions run 1990-03-01 to 1994-12-31. 0–100, top speed, city/highway/combined consumption, CO2, eco class, gross weight, and wheel sizes are not measured for either car, so they cannot be used as a tie-breaker.
Specs that are identical — and the two that are not
| Version | hp | Nm | Displacement (cm³) | Fuel | Cylinders / layout | Boost | Gearbox | Drive | Kerb weight (kg) |
|---|---|---|---|---|---|---|---|---|---|
| 1.5 MT | 110 | 132 | 1496 | Gasoline | 4 Inline | No | Manual 5 | FWD | 910 |
| 1.5 AT | 110 | 132 | 1496 | Gasoline | 4 Inline | No | Automatic 4 | FWD | 950 |
Power per litre is the same: 110 hp ÷ 1.496 L = 73.5 hp per litre. Torque per litre is 132 ÷ 1.496 = 88.2 Nm per litre. Specific output does not favour one badge over the other.
Weight per horsepower does:
- 1.5 MT: 910 ÷ 110 = 8.27 kg per hp
- 1.5 AT: 950 ÷ 110 = 8.64 kg per hp
The Automatic carries 0.37 kg extra per horsepower, or about 4.4% more kerb mass for the same 110 hp. On paper that is the entire “performance” gap the data allow: same peak power, same peak torque, same rpm, same tank, same clearance, same FWD, same brakes (ventilated disc front, drum rear), same independent spring front and semi-independent spring rear. If you want the lighter Sera, it is 1.5 MT. If you want the Automatic, you accept 40 kg.
Which Toyota Sera engine — there is only one
Search queries that ask for “Sera engine” or “1.5 specs” point at a single mechanical recipe. Both versions use Gasoline, 4 Inline cylinders, 4 valves per cylinder, no boost, front transverse, distributed injection (multi-point), 92-octane fuel, 9.8 compression. There is no second displacement, no turbo, no extra cylinder count, and no AWD line in this generation.
So “which engine to buy” is the wrong question. Buy 1.5 MT or 1.5 AT for how the 110 hp is shifted, not for a different motor. Anyone comparing Sera “generations” of engines will not find a later, stronger unit in these figures: pokoleniy = 1, modifikaciy = 2, both 110 hp / 132 Nm / 1496 cm³.
Gearbox: 5 Manual vs 4 Automatic
1.5 MT has Manual, 5 speeds. 1.5 AT has Automatic, 4 speeds. That is one extra ratio on the Manual and one fewer on the Automatic, with identical peak engine speed (6400 rpm for power, 5200 rpm for torque).
What the extra ratio buys is not a measured 0–100 or a measured mpg figure — those are not measured — but a different number of steps across the same 110 hp and 132 Nm. The Automatic does not add power, torque, displacement, or drive wheels. It adds mass (40 kg) and drops one gear.
If the goal is the lowest recorded mass and the denser set of ratios, 1.5 MT is the match. If the goal is Automatic with the same 110 hp Gasoline 1.5, 1.5 AT is the only Automatic in the table.
Weight, tank, clearance — what extra mass buys
Gross weight is not measured for either version. Wheel sizes are not measured. Ground clearance is 145 mm on both. Fuel tank is 40 litres on both.
The only dimension-like number that moves is kerb weight:
- 1.5 MT: 910 kg
- 1.5 AT: 950 kg
- Difference: +40 kg on 1.5 AT
40 kg on a 910 kg car is +4.4%. Relative to the 40-litre tank, that is not a fuel-volume change; tank capacity is identical. Relative to 110 hp, it is the kg/hp gap already calculated (8.27 vs 8.64).
There is no “heavier but more powerful” trade. Extra mass does not buy extra hp, extra Nm, extra litres, extra drive, or extra clearance. It buys the 4-speed Automatic.
Performance and mpg: not measured, so do not invent a winner
0–100 km/h: not measured (1.5 MT and 1.5 AT). Top speed: not measured. City / highway / combined consumption: not measured. CO2: not measured. Eco class: not measured.
A buying guide that ranks these two on acceleration or mpg would be inventing numbers. The only performance proxy in the file is mass versus power. On that proxy, 1.5 MT is the denser car (8.27 kg/hp vs 8.64). That is arithmetic on catalogue kerb weights, not a timed run.
Generations: nothing later to “step up” to
One generation, Coupe, two versions. Production window for the generation is 1990-03-01 to 1995-12-31; both 1.5 MT and 1.5 AT are dated 1990-03-01 to 1994-12-31. There is no restyling generation, no second body type, and no later engine family in the data.
“Which generation changed what” therefore has a short answer: nothing in the powertrain or weight table changes between generations, because there is only one generation. The comparison is intra-generation: Manual 5 at 910 kg versus Automatic 4 at 950 kg.
Reliability and problems — what the numbers can and cannot say
The data do not list failure rates, known faults, or service intervals. They do list a simple mechanical layout: Gasoline, no boost, 4 Inline, multi-point injection, FWD, drum rear brakes, 145 mm clearance, 40-litre tank. Those facts are the same on 1.5 MT and 1.5 AT.
What differs for ownership complexity is the gearbox type (Manual 5 vs Automatic 4) and the 40 kg of extra kerb weight on the Automatic. That is the only documented split. Any claim that one Sera is “more reliable” than the other is outside this dataset.
Dimensions that do not split the choice
- Ground clearance: 145 mm on 1.5 MT and 1.5 AT
- Tank: 40 L on both
- Front suspension: Independent, spring on both
- Rear suspension: Semi-independent, spring on both
- Front brakes: Ventilated disc on both
- Rear brakes: Drum on both
- Drive: FWD on both
- Wheels: not measured on both
- Gross weight: not measured on both
If the buying criterion is ride height, tank size, or brake type, the two versions are equal. If the criterion is kerb weight or gearbox, they are not.
Which version to choose
Choose 1.5 MT if the numbers that matter are mass and ratio count: 910 kg, 8.27 kg per hp, 5-speed Manual, same 110 hp / 132 Nm / 1496 cm³ Gasoline inline 4 as the Automatic. It is the lighter of the two Coupes and the only Manual.
Choose 1.5 AT if the requirement is Automatic: 4 speeds, 950 kg, 8.64 kg per hp, still 110 hp, 132 Nm, 1496 cm³, FWD, 40 L tank, 145 mm clearance. You pay 40 kg for the Automatic. You do not get more power, more torque, a larger tank, more clearance, or a measured economy figure that justifies the extra mass — those economy and 0–100 figures are not measured.
There is no third version, no higher-output 1.5, and no later generation in this catalogue extract. The buy decision is 1.5 MT versus 1.5 AT, and the only arithmetic gap is 40 kg and one gearbox type.