Plymouth Acclaim

Which Plymouth Acclaim version to buy

If you want the lightest, simplest car in the range, the naturally aspirated 2.5 MT (102 hp) is the baseline: 1265 kg kerb weight, 5-speed Manual, FWD, 165 km/h top speed. If you want the most horsepower from 2501 cm³, the turbo 2.5 MT (152 hp) adds 50 hp and 47 Nm over that same displacement and the same 1265 kg — 8.3 kg per hp versus 12.4 kg per hp on the 102 hp car.

If you want the lightest, simplest car in the range, the naturally aspirated 2.5 MT (102 hp) is the baseline: 1265 kg kerb weight, 5-speed Manual, FWD, 165 km/h top speed. If you want the most horsepower from 2501 cm³, the turbo 2.5 MT (152 hp) adds 50 hp and 47 Nm over that same displacement and the same 1265 kg — 8.3 kg per hp versus 12.4 kg per hp on the 102 hp car. If you want the highest listed top speed and a 6-cylinder layout, the 3.0 AT (143 hp) is the only V-shaped engine: 2972 cm³, 4-speed Automatic, 1350 kg, 195 km/h. There is only 1 generation, so you are not choosing a restyle year; you are choosing among five powertrain combinations that ran 1989-01-01 to 1995-12-31.

Specs compared: every version by name

All five use Front, transverse mounting, 2 valves per cylinder, 61 L tank, 120 mm ground clearance, Independent, spring front and rear, Ventilated disc front brakes, Drum rear. Fuel type is Gasoline on 92 for every row.

Engine: 102 hp vs 152 hp vs 143 hp

Power per litre (hp ÷ displacement in litres):

• 2.5 MT / 2.5 AT at 102 hp: 102 ÷ 2.501 ≈ 40.8 hp/L
• 2.5 MT / 2.5 AT at 152 hp: 152 ÷ 2.501 ≈ 60.8 hp/L
• 3.0 AT: 143 ÷ 2.972 ≈ 48.1 hp/L

The turbo four is the densest engine in the catalogue: 20.0 hp/L above the naturally aspirated 2.5, and 12.7 hp/L above the 3.0. Peak power rpm is 4800 on all four 2.5 versions and 5000 on the 3.0 AT — 200 rpm later for the six.

Torque:

• NA 2.5: 183 Nm at 2800 rpm
• Turbo 2.5: 230 Nm at 2800 rpm (+47 Nm, same rpm)
• 3.0 AT: 232 Nm at 3600 rpm (+2 Nm versus turbo 2.5, but 800 rpm later)

The six wins peak torque by 2 Nm. The turbo four makes almost the same peak 800 rpm earlier. The NA four is 47 Nm behind the turbo and 49 Nm behind the six.

What the extra 50 hp buys on the 2.5: 152 − 102 = 50 hp (about 49% more). Boost is the only engine-side difference listed: Turbo versus No. Compression ratio is 9 on the 102 hp 2.5, not measured on both 152 hp versions, and 8.9 on the 3.0 AT. Bore × stroke is 87.5 × 104 on all 2.5 versions and 91.1 × 76 on the 3.0 AT. Injection is Central injection (single-point or single- point) on the fours and Distributed injection (multi-point) on the six.

Automatic vs Manual: what the gearbox changes

On the 2.5, gearbox is a clean split:

• 2.5 MT (102 hp) and 2.5 MT (152 hp): Manual, 5
• 2.5 AT (102 hp) and 2.5 AT (152 hp): Automatic, 3

Same engine, same FWD, same 61 L tank, same 120 mm clearance. The AT cars drop from 5 speeds to 3. Top speed is listed only on the NA 2.5 MT (165 km/h); both 2.5 AT versions have top speed not measured. Kerb weight is 1265 kg on both 2.5 MT cars and not measured on both 2.5 AT cars — so you cannot treat the automatic as heavier from these figures.

The 3.0 AT is the only Automatic with 4 speeds (one more than the 2.5 automatics, one fewer than the manuals). It is also the only 6-cylinder and the only 2972 cm³ engine.

Buyer arithmetic: if you want 152 hp and will not accept a 3-speed Automatic, the turbo 2.5 MT is the only match. If you want an Automatic and the most gears, the 3.0 AT is the only 4-speed. If you want an Automatic and the most hp, the turbo 2.5 AT (152 hp) beats the 3.0 AT (143 hp) by 9 hp, at the cost of 3 speeds versus 4 and torque peaking at 2800 versus 3600.

Performance and mpg: what is measured

0–100: not measured on all five versions.

Top speed:

• 2.5 MT (102 hp): 165 km/h
• 2.5 AT (102 hp): not measured
• 2.5 MT (152 hp): not measured
• 2.5 AT (152 hp): not measured
• 3.0 AT: 195 km/h

The only two measured tops are 165 and 195 km/h. The 3.0 AT is 30 km/h faster than the NA 2.5 MT. You cannot rank the turbo cars on top speed from this data.

Fuel consumption (city / highway / combined): not measured on all five. CO₂ and eco class: not measured on all five. MPG is therefore not a selection criterion here; tank volume is 61 L on every version, so range cannot be compared without consumption figures.

Dimensions, weight, and kg per horsepower

Ground clearance is 120 mm on all five. Wheel sizes: not measured on all five. Gross weight: not measured on all five.

Kerb weight that is measured:

• 2.5 MT (102 hp): 1265 kg → 1265 ÷ 102 ≈ 12.4 kg/hp
• 2.5 MT (152 hp): 1265 kg → 1265 ÷ 152 ≈ 8.3 kg/hp
• 3.0 AT: 1350 kg → 1350 ÷ 143 ≈ 9.4 kg/hp
• both 2.5 AT versions: kerb not measured

The turbo manual is 4.1 kg/hp lighter-feeling on paper than the NA manual at identical 1265 kg. The 3.0 AT is 85 kg heavier than the 1265 kg fours (1350 − 1265) and sits between them on kg/hp: 9.4 versus 8.3 (turbo MT) and 12.4 (NA MT). You cannot compute kg/hp for either 2.5 AT.

Reliability and problems: what the specs actually change

There is no reliability or failure-rate data in the source. What you can say from the table is which systems differ:

• Boost: only the 152 hp 2.5 MT and 2.5 AT have Turbo; the 102 hp fours and the 3.0 AT have No. That is the only forced-induction pair.
• Cylinders: 4 Inline on four versions; 6 V-shaped only on 3.0 AT.
• Injection: Central injection (single-point or single- point) on all 2.5; Distributed injection (multi-point) only on 3.0 AT.
• Compression: 9 (102 hp 2.5), not measured (152 hp 2.5), 8.9 (3.0 AT).
• Brakes and suspension: identical labels on all five — not a differentiator.
• Drive: FWD on all five — not a differentiator.

If you want fewer listed complications, the NA 2.5 MT (102 hp) or 2.5 AT (102 hp) have No boost and 4 cylinders. If you want the extra 50 hp, you accept Turbo on the same 2501 cm³ four. If you want 6 cylinders and multi-point injection, only the 3.0 AT provides them.

Which version to choose (decision by numbers)

Choose the 102 hp 2.5 MT if you want a measured top speed on a four-cylinder (165 km/h), a 5-speed Manual, 1265 kg, and the lowest power density (40.8 hp/L). It is the only version with both kerb weight and top speed filled in among the 2.5 cars.

Choose the 102 hp 2.5 AT if you need Automatic and do not want Turbo. You give up two gears (3 versus 5), and kerb weight, 0–100, top speed, and mpg are all not measured. Power and torque match the 102 hp 2.5 MT exactly (102 hp, 183 Nm).

Choose the 152 hp 2.5 MT if horsepower and kg/hp matter most. Same 1265 kg as the 102 hp 2.5 MT, +50 hp, +47 Nm, Turbo, 5-speed Manual, 8.3 kg/hp. Top speed, 0–100, compression, and mpg are not measured. Versus the 3.0 AT you have +9 hp, −2 Nm, −85 kg (when comparing 1265 to 1350), 5 speeds versus 4, and 60.8 versus 48.1 hp/L.

Choose the 152 hp 2.5 AT if you want the most hp with Automatic: 152 versus 143 on the 3.0 AT (+9 hp), 230 versus 232 Nm (−2 Nm), 3 speeds versus 4, Turbo versus No, 4 Inline versus 6 V-shaped. Kerb, 0–100, top speed, and mpg: not measured.

Choose the 3.0 AT if you want the only 6-cylinder, the only 2972 cm³ engine, the only 4-speed Automatic, the only Distributed injection (multi-point), and the highest measured top speed (195 km/h). You pay 85 kg over the 1265 kg manuals, give up 9 hp to the turbo 2.5, and peak torque 800 rpm later than the turbo four. Fuel is still Gasoline 92; tank is still 61 L; clearance is still 120 mm.

One generation, no restyle split: all five versions share 1989–1995 and Sedan. There is no later generation that “fixed” gears, weight, or boost. The buy decision is only among these five names: 2.5 MT (102 hp), 2.5 AT (102 hp), 2.5 MT (152 hp), 2.5 AT (152 hp), 3.0 AT.