Morris Mini

The Morris Mini in this catalogue is a single-generation choice between two named versions. The numbers below are taken only from the given data; missing figures are marked not measured.

The Morris Mini in this catalogue is 1 generation, sold from 1976-01-01 to 1983-12-31 as a Mini 3-doors with 2 versions: 0.9 MT and 1.0 MT. Both are Gasoline, 4 Inline, 2 valves per cylinder, boost No, Front, transverse, Carburetor, Manual 4, FWD.

The Morris Mini in this catalogue is a single-generation choice between two named versions. The numbers below are taken only from the given data; missing figures are marked not measured.

# Morris Mini: which version to buy (0.9 MT vs 1.0 MT)

The Morris Mini in this catalogue is 1 generation, sold from 1976-01-01 to 1983-12-31 as a Mini 3-doors with 2 versions: 0.9 MT and 1.0 MT. Both are Gasoline, 4 Inline, 2 valves per cylinder, boost No, Front, transverse, Carburetor, Manual 4, FWD. The buying question is not “which generation” — there is only 4 generation — but which of those two engines and kerb weights fits how you will use the car.

Generations: what 4 generation actually offers

4 generation (keys in data: generation 8670) ran 1976-01-01–1983-12-31. Body: Mini 3-doors. Versions in the generation: 2. There is no restyling listed as a separate generation, so you do not choose a later body or a later gearbox family. Front brakes are Disc, rear Drum. Front and rear suspension are both Independent, spring. Ground clearance is 152 mm on both versions. Tank size, wheel sizes, and gross weight are not measured on both, so those items cannot decide the purchase.

Specs that separate 0.9 MT from 1.0 MT

Power peak is at the same 5500 rpm on both. 0.9 MT is the only version with a torque figure: 60 Nm at 2900 rpm. 1.0 MT torque is not measured, so you cannot rank them on Newton-metres.

Bore and stroke from the data: 0.9 MT 62.9 × 68.26, 1.0 MT 64.58 × 76.2. Displacement gap is 998 − 848 = 150 cc. Power gap is 39 − 34 = 5 hp (28 − 25 = 3 kW). That is 5 / 34 ≈ 15% more peak power on 1.0 MT.

Power per litre (hp divided by litres): 0.9 MT 34 / 0.848 ≈ 40.1 hp/L; 1.0 MT 39 / 0.998 ≈ 39.1 hp/L. The smaller engine is slightly more powerful per litre; the larger engine wins on absolute horsepower, not on specific output.

Performance, mpg, and what is not measured

0-100 is not measured for 0.9 MT and not measured for 1.0 MT. You cannot pick a version on sprint time.

Top speed: 0.9 MT 116; 1.0 MT not measured. The only catalogue top speed you can quote is 116 on 0.9 MT. That does not prove 1.0 MT is slower or faster; the figure is simply missing.

Fuel: city, highway, mixed, tank, CO2, eco class, and fuel grade are not measured on both. There is no mpg ranking. Economy cannot be the reason to buy one Mini over the other from this dataset.

Dimensions and weight: the real split

Kerb weight: 0.9 MT 640; 1.0 MT 584. 1.0 MT is 640 − 584 = 56 kg lighter (56 / 640 ≈ 9%). Gross weight is not measured on both. Ground clearance is 152 mm on both. Tank not measured. Wheels not measured.

Weight per horsepower: 0.9 MT 640 / 34 ≈ 18.8 kg/hp; 1.0 MT 584 / 39 ≈ 15.0 kg/hp. 1.0 MT carries about 18.8 − 15.0 = 3.8 kg less per horsepower. That is the strongest arithmetic argument in the file: more peak power and less kerb mass on the same Manual 4 FWD layout.

Both share Independent, spring front and rear, Disc front, Drum rear, 152 mm clearance. Chassis spec does not split the two versions.

Which version to choose

Choose 1.0 MT if the decision is power and mass from the numbers given. You get 39 hp vs 34 hp, 28 kW vs 25 kW, 998 cc vs 848 cc, and 584 kg vs 640 kg. Same 5500 rpm power peak, same Gasoline Carburetor 4 Inline Front, transverse, same Manual 4 FWD, same Mini 3-doors years 1976-01-01–1983-12-31. You do not get a measured torque, top speed, 0-100, or mpg for 1.0 MT — those are not measured.

Choose 0.9 MT if you need the only complete torque and top-speed pair in the catalogue: 60 Nm at 2900 rpm and 116 top speed, with 34 hp (25 kW) from 848 cc at 640 kg. Specific output is slightly higher (≈40.1 vs ≈39.1 hp/L). You pay for that with 5 fewer hp and 56 kg extra kerb weight. If your use case is documented peak torque and a documented maximum speed, 0.9 MT is the only version that lists both.

There is no second generation to buy into. 4 generation is the whole Morris Mini set here. Extra money, in the sense of “what the larger engine buys,” is 150 cc, 5 hp, 3 kW, and 56 kg less kerb — not a different body, not more gears, not a different drive, not measured fuel or 0-100.

Reliability and typical problems are not measured in this dataset; do not treat either version as ranked for durability from these figures. Prices are not in the data.

Short buy rule from the arithmetic only: if you want the better hp-to-weight ratio, 1.0 MT (≈15.0 kg/hp). If you want the only listed torque and top speed, 0.9 MT (60 Nm, 116). Same years, same Mini 3-doors, same gearbox and drive.