BMW Z3 M generations: what actually changes between versions
There is 1 generation. Years: 1997-01-01 to 2000-12-31. Body: Coupe. Count of versions: 4. There is no restyling listed as a separate generation.
There is 1 generation. Years: 1997-01-01 to 2000-12-31. Body: Coupe. Count of versions: 4. There is no restyling listed as a separate generation.
What does not change generation to generation (there is only one): engine displacement 3201 cm³, cylinders 6, cylinder layout Inline, valves per cylinder 4, boost No, engine position Front, longitudinal, feed Distributed injection (multi-point), compression 11.3, bore × stroke 86.4 × 91, fuel grade 98, tank 51 L, ground clearance 110 mm, wheels 225/50 R17 and 245/40 R17, front suspension Independent, spring, rear suspension Independent, spring, front brakes Ventilated disc, rear brakes Disc, 0–100 range 5.3–5.4 s, top speed 250 km/h.
What does change inside the generation is only the 321 vs 325 hp tune and the 1350 vs 1390 kg kerb pair. Those four combinations are the whole choice.
This listing is Coupe. Roadster search queries are common; this dataset has no roadster body and no roadster numbers.
BMW Z3 M specs and engine: four 3.2 MT versions compared
All four rows are named 3.2 MT. Distinguishing them by power and mass is required; renaming them would break modification anchors.
| Version | hp (kW @ rpm) | Nm @ rpm | cm³ | Fuel | Cylinders / layout | Boost | Gearbox | Drive | Kerb / gross kg | 0–100 s |
|---|---|---|---|---|---|---|---|---|---|---|
| 3.2 MT (321 hp, 1390 kg) | 321 (236 @ 7400) | 350 @ 3250 | 3201 | Gasoline | 6 Inline | No | Manual 5 | RWD | 1390 / 1660 | 5.4 |
| 3.2 MT (325 hp, 1350 kg) | 325 (239 @ 7400) | 350 @ 4900 | 3201 | Gasoline | 6 Inline | No | Manual 5 | RWD | 1350 / 1620 | 5.3 |
| 3.2 MT (321 hp, 1350 kg) | 321 (236 @ 7400) | 350 @ 3250 | 3201 | Gasoline | 6 Inline | No | Manual 5 | RWD | 1350 / 1620 | 5.4 |
| 3.2 MT (325 hp, 1390 kg) | 325 (239 @ 7400) | 350 @ 4900 | 3201 | Gasoline | 6 Inline | No | Manual 5 | RWD | 1390 / 1660 | 5.3 |
Specific output from the given figures: 321 hp / 3.201 L = 100.3 hp/L; 325 hp / 3.201 L = 101.5 hp/L. The 4 hp step is +1.2 hp/L, or +1.2% on the same 3201 cm³ block. There is no extra displacement to buy; the extra 4 hp is a tune, not a larger engine.
Kilowatts: 239 − 236 = 3 kW between the two power labels.
Engine code is not measured in this dataset. Do not treat a missing code as a listed factory code.
BMW Z3 M horsepower, 0–100, mpg: performance and economy
0–100 km/h: 5.4 s on both 3.2 MT versions with 321 hp; 5.3 s on both 3.2 MT versions with 325 hp. The gap is 0.1 s. That 0.1 s tracks the 4 hp step, not the 40 kg step: the light 321 hp car and the heavy 321 hp car share 5.4 s; the light 325 hp car and the heavy 325 hp car share 5.3 s.
Top speed: 250 km/h on all four 3.2 MT versions. Extra power does not raise the listed top speed.
0–60 mph: not measured (only 0–100 is in the data).
mpg / consumption: city not measured, highway not measured, combined not measured on every 3.2 MT. CO2 not measured. Eco class not measured. A catalogue that omitted those lines would look as if the car had no consumption parameter; it has the fields, and they are empty.
Torque peak vs power peak: on 3.2 MT (321 hp) the 350 Nm arrives at 3250 rpm, 4150 rpm below the 7400 rpm power peak. On 3.2 MT (325 hp) the same 350 Nm arrives at 4900 rpm, 2500 rpm below 7400. The 325 hp cars are not stronger in peak newton-metres; they move peak torque 1650 rpm higher. If the buying criterion is earlier peak torque, the 321 hp 3.2 MT is the one with 3250 rpm. If the criterion is the 0.1 s 0–100 and 4 extra hp, the 325 hp 3.2 MT is the one.
BMW Z3 M weight, dimensions, tank, wheels
Ground clearance: 110 mm on all four 3.2 MT versions.
Tank: 51 L on all four. Combined consumption is not measured, so range from tank size is not measured.
Wheels: 225/50 R17 and 245/40 R17 on all four — staggered pair, not a choice between versions.
Kerb / gross: two mass pairs.
- 1390 kg kerb / 1660 kg gross: 3.2 MT (321 hp, 1390 kg) and 3.2 MT (325 hp, 1390 kg). Payload from the numbers: 1660 − 1390 = 270 kg.
- 1350 kg kerb / 1620 kg gross: 3.2 MT (325 hp, 1350 kg) and 3.2 MT (321 hp, 1350 kg). Payload: 1620 − 1350 = 270 kg.
The 40 kg kerb difference (1390 − 1350) is 2.9% of 1390 kg. Gross also differs by 40 kg (1660 − 1620). Payload does not change.
Weight per horsepower (kerb kg / hp):
- 3.2 MT (321 hp, 1390 kg): 1390 / 321 = 4.33 kg/hp
- 3.2 MT (325 hp, 1390 kg): 1390 / 325 = 4.28 kg/hp
- 3.2 MT (321 hp, 1350 kg): 1350 / 321 = 4.21 kg/hp
- 3.2 MT (325 hp, 1350 kg): 1350 / 325 = 4.15 kg/hp
Best (lowest) kg/hp is 3.2 MT (325 hp, 1350 kg) at 4.15. Worst is 3.2 MT (321 hp, 1390 kg) at 4.33. Spread: 0.18 kg/hp, 4.2% of the heaviest-per-hp figure.
hp per tonne of kerb mass:
- 3.2 MT (321 hp, 1390 kg): 321 / 1.390 = 230.9 hp/t
- 3.2 MT (325 hp, 1390 kg): 325 / 1.390 = 233.8 hp/t
- 3.2 MT (321 hp, 1350 kg): 321 / 1.350 = 237.8 hp/t
- 3.2 MT (325 hp, 1350 kg): 325 / 1.350 = 240.7 hp/t
The light 325 hp 3.2 MT is 9.8 hp/t above the heavy 321 hp 3.2 MT (240.7 − 230.9). Putting 4 hp on the heavy car (233.8 hp/t) is a smaller step than putting the same 321 hp on the light car (237.8 hp/t). On these numbers, 40 kg off kerb at 321 hp buys more hp/t than 4 hp on at 1390 kg.
Length, width, height, wheelbase: not measured. Search queries for BMW Z3 M dimensions and Coupe dimensions cannot be answered with millimetres from this dataset; clearance, masses, tank and tyres are the measured size-related fields.
Which BMW Z3 M 3.2 MT to choose
There is no second generation to “wait for” and no automatic, AWD, or diesel row. Every car is Gasoline, Manual 5, RWD, Coupe, 1997–2000. Price is not in the data; “what the extra money buys” here means what the extra 4 hp and the extra 40 kg (or their removal) buy in the table.
Choose 3.2 MT (325 hp, 1350 kg) if the goal is the strongest listed combination: 325 hp (239 kW), 5.3 s 0–100, 1350 kg kerb, 4.15 kg/hp, 240.7 hp/t. It is the only version that stacks the higher power and the lower mass. Peak torque is still 350 Nm, but at 4900 rpm.
Choose 3.2 MT (321 hp, 1350 kg) if mass matters more than the 4 hp. Same 1350 / 1620 kg as the light 325, same 5.4 s 0–100 as the other 321, 4.21 kg/hp, 237.8 hp/t. Versus the light 325, you give up 4 hp, 0.1 s, and 2.9 hp/t, and you gain the 350 Nm @ 3250 rpm torque peak instead of 4900 rpm. Versus the heavy 321, you give up nothing in power and drop 40 kg.
Choose 3.2 MT (325 hp, 1390 kg) if you want 325 hp and 5.3 s but accept the 1390 / 1660 kg pair. 4.28 kg/hp, 233.8 hp/t. Versus the light 325 you add 40 kg and lose 6.9 hp/t with no change in 0–100 (still 5.3 s) and no change in top speed (250). The 0–100 figure does not reward the lighter 325 in this dataset; the kg/hp figure does.
Choose 3.2 MT (321 hp, 1390 kg) only if you specifically want 321 hp with the 1390 kg kerb — it is the weakest ratio set: 4.33 kg/hp, 230.9 hp/t, 5.4 s. Same torque peak as the other 321 (350 Nm @ 3250). Same wheels, tank, clearance, brakes, suspension, gears and drive as the other three.
Manual transmission: all four are Manual 5. There is no automatic 3.2 MT here, so a search for “BMW Z3 M manual” does not split the field.
Engine swap / engine for sale: not in the data. What is listed is one 3201 cm³ Gasoline Inline 6, No boost, Front, longitudinal, Distributed injection (multi-point), 98 fuel, two power labels.
Reliability / problems: not measured.
Years in search (1998, 1999, 2000, 2001, 2002): production in this generation is 1997-01-01 to 2000-12-31. Specs for 2001 and 2002 BMW Z3 M are not measured here because those calendar years are outside the listed window. Inside 1997–2000, year does not split the four 3.2 MT rows; power and kerb do.
Summary in one line per version: 3.2 MT (325 hp, 1350 kg) — highest hp/t and lowest kg/hp; 3.2 MT (321 hp, 1350 kg) — light kerb with earlier 350 Nm; 3.2 MT (325 hp, 1390 kg) — 325 hp without the 40 kg saving; 3.2 MT (321 hp, 1390 kg) — 321 hp and the heavier kerb. Fuel consumption remains not measured on all four.