Chevrolet Omega: which version to buy and why
The Chevrolet Omega catalogue in this data set is two sedan generations and nine named versions. The buying question is not “what is an Omega” but which of those nine rows matches the job: lightest and cheapest to feed, strongest 0–100, most torque, or the later 3.8-litre layout. The numbers below are only those supplied for each version; where a cell is empty it is written as not measured.
The Chevrolet Omega catalogue in this data set is two sedan generations and nine named versions. The buying question is not “what is an Omega” but which of those nine rows matches the job: lightest and cheapest to feed, strongest 0–100, most torque, or the later 3.8-litre layout. The numbers below are only those supplied for each version; where a cell is empty it is written as not measured.
Chevrolet Omega specs by generation: what actually changed
1 generation (1992-01-01 to 1998-12-31) is a Sedan with 7 versions. Ground clearance is 145 mm on every measured first-generation row. Fuel tanks are 75 L on five versions and 70 L on two later 3.0 rows. Kerb weight, where measured, runs 1275 kg (`2.0 MT`) to 1505 kg (`4.1 MT`). Engines are Gasoline, unboosted (`No`), with Independent, spring suspension at both ends, Ventilated disc front brakes, Disc rear brakes, and RWD. Cylinder counts in this generation are 6 Inline or 4 Inline depending on version — that split is the first filter, not a trim name.
2 generation (1998-01-01 to 2007-12-31) is still a Sedan, but only 2 versions, both `3.8`. Power rises to 200 hp (147 kW) at 5200 rpm and 304 Nm at 4000 rpm from 3791 cm³, 6 cylinders in a V-shaped layout, Front, transverse, still Gasoline and `No` boost, still RWD. Ground clearance drops to 110 mm — 35 mm lower than generation 1. The measured `3.8 MT` kerb weight is 1640 kg, 135 kg heavier than the first-generation `4.1 MT` (1505 kg) and 365 kg heavier than `2.0 MT` (1275 kg). Gross weight is 2085 kg on both second-generation versions.
If the search is “Chevrolet Omega 1992”, the first generation is the only match. If it is “Chevrolet Omega 1998”, both calendars overlap that year: generation 1 until 1998-12-31 and generation 2 from 1998-01-01. Specs, not the year alone, separate them.
Chevrolet Omega engine and specs table
Exact version names as in the data. Two first-generation rows share the name `3.0 MT` at the same 165 hp; they are split here by tank and mass. Two rows share `3.0 AT` at 165 hp; they are split the same way.
| Version | Generation | hp (kW @ rpm) | Nm @ rpm | cm³ | Fuel | Cylinders / layout | Boost | Gearbox | Drive |
|---|---|---|---|---|---|---|---|---|---|
| 2.0 MT | 1 | 116 (85 @ 5200) | 170 @ 2800 | 1998 | 80 | 6 Inline | No | Manual 5 | RWD |
| 2.2 MT | 1 | 116 (85 @ 5200) | 197 @ 2800 | 2198 | 80 | 4 Inline | No | Manual 5 | RWD |
| 3.0 MT (75 L, 1450 kg) | 1 | 165 (121 @ 5800) | 230 @ 4200 | 2969 | 95 | 6 Inline | No | Manual 5 | RWD |
| 3.0 AT (75 L) | 1 | 165 (121 @ 5800) | 230 @ 4200 | 2969 | 95 | 6 Inline | No | Automatic 4 | RWD |
| 4.1 MT | 1 | 168 (124 @ 4500) | 285 @ 3500 | 4093 | 80 | 4 Inline | No | Manual 5 | RWD |
| 3.0 MT (70 L, 1497 kg) | 1 | 165 (121 @ 5800) | 230 @ 4200 | 2969 | 95 | 6 Inline | No | Manual 5 | RWD |
| 3.0 AT (70 L) | 1 | 165 (121 @ 5800) | 230 @ 4200 | 2969 | 95 | 6 Inline | No | Automatic 4 | RWD |
| 3.8 MT | 2 | 200 (147 @ 5200) | 304 @ 4000 | 3791 | 80 | 6 V-shaped | No | Manual 5 | RWD |
| 3.8 AT | 2 | 200 (147 @ 5200) | 304 @ 4000 | 3791 | 80 | 6 V-shaped | No | Automatic 4 | RWD |
Power per litre (hp ÷ displacement in litres): `2.0 MT` 58.1 hp/L; `3.0 MT` / `3.0 AT` 55.6 hp/L; `2.2 MT` and `3.8 MT` / `3.8 AT` 52.8 hp/L; `4.1 MT` 41.0 hp/L. The 4.1-litre engine is the least specific; the 2.0-litre six is the most.
Torque per litre: `2.2 MT` 89.6 Nm/L; `2.0 MT` 85.1; `3.8` 80.2; `3.0` 77.5; `4.1 MT` 69.6. The `2.2 MT` makes 27 Nm more than the `2.0 MT` from 200 cm³ extra and one fewer cylinder bank (4 Inline vs 6 Inline) at the same 116 hp.
Peak rpm tells a different story than peak hp. `4.1 MT` makes its 168 hp already at 4500 rpm and 285 Nm at 3500. `3.0` versions wait until 5800 rpm for 165 hp and 4200 for 230 Nm. `3.8` sits in between: 200 hp at 5200, 304 Nm at 4000.
Chevrolet Omega 4.1 specs vs 3.0 vs 3.8: performance
Measured 0–100 km/h and top speed exist only for four manuals. Automatics (`3.0 AT`, `3.8 AT`) and `2.2 MT` are not measured for both.
- `4.1 MT`: 9.5 s, 215 km/h — shortest sprint in the set, 0.5 s quicker than `3.0 MT` and `3.8 MT`.
- `3.0 MT` (both 75 L and 70 L rows): 10 s, 210 km/h.
- `3.8 MT`: 10 s, 216 km/h — same 0–100 as the 3.0 manuals, 1 km/h above `4.1 MT` and 6 km/h above `3.0 MT`.
- `2.0 MT`: 12 s, 191 km/h — 2.5 s and 24 km/h behind `4.1 MT`.
City, highway, and combined consumption are not measured on every version. CO2 and eco class are not measured on every version. Fuel grade is not the same: `3.0 MT` and `3.0 AT` specify 95; `2.0 MT`, `2.2 MT`, `4.1 MT`, `3.8 MT`, and `3.8 AT` specify 80. That is a running-cost split independent of mpg, which we do not have.
Weight per horsepower where kerb mass is measured:
- `3.8 MT`: 1640 / 200 = 8.20 kg/hp (best)
- `3.0 MT` (75 L): 1450 / 165 = 8.79 kg/hp
- `4.1 MT`: 1505 / 168 = 8.96 kg/hp
- `3.0 MT` (70 L): 1497 / 165 = 9.07 kg/hp
- `2.0 MT`: 1275 / 116 = 11.0 kg/hp
- `2.2 MT`: 1350 / 116 = 11.6 kg/hp (worst among measured kerbs)
`3.8 AT` and both `3.0 AT` rows have kerb mass not measured, so kg/hp cannot be calculated for them. Gross mass is measured: first-generation `3.0` at 1985 kg (75 L pair) or 2110 kg (70 L pair); `2.0 MT` 1815 kg; second generation 2085 kg. `2.2 MT` and `4.1 MT` gross mass is not measured.
The extra 32 hp from `4.1 MT` (168) to `3.8 MT` (200) is +19%. The extra 19 Nm (285 → 304) is +7%. The extra 135 kg of kerb on `3.8 MT` vs `4.1 MT` is +9%. That is why 0–100 stays 10 s on `3.8 MT` against 9.5 s on the older `4.1 MT`: more power, more mass, same sprint band.
Dimensions, tank, clearance: what the later car gives up
Wheel sizes are not measured on all nine versions.
Tank: 75 L on `2.0 MT`, `2.2 MT`, `4.1 MT`, the 75 L `3.0` pair, `3.8 MT`, and `3.8 AT`. 70 L on the second `3.0 MT` and `3.0 AT` pair — 5 L less than the other 3.0 rows with identical 165 hp / 230 Nm. Those two 70 L rows also carry the higher gross mass (2110 kg vs 1985 kg, +125 kg). If two cars are both labelled `3.0 MT` at 165 hp, the 75 L / 1450 kg / 1985 kg row is the lighter, larger-tank car; the 70 L / 1497 kg / 2110 kg row is 47 kg heavier at kerb.
Clearance: generation 1 145 mm, generation 2 110 mm. Buyers who want ride height stay in 1992–1998. The 1998–2007 `3.8` sedan sits 35 mm lower.
Kerb range: 1275 kg (`2.0 MT`) to 1640 kg (`3.8 MT`) is 365 kg — more than a quarter of the lightest car. `2.2 MT` at 1350 kg is 75 kg heavier than `2.0 MT` for the same 116 hp.
Chevrolet Omega 4.1 engine vs 2.0 / 2.2 / 3.0 / 3.8: which motor
Search interest clusters on Chevrolet Omega 4.1 and 4.1 engine. In this data the `4.1 MT` is a 4093 cm³ Gasoline 4 Inline, 2 valves per cylinder, compression 8.5, bore × stroke 98.4 × 89.7, fuel 80, 168 hp at a low 4500 rpm, 285 Nm at 3500. It is the largest displacement and the strongest first-generation torque. It is not the strongest horsepower: `3.8 MT` / `3.8 AT` add 32 hp and 19 Nm from 3791 cm³ and a 6 V-shaped layout.
`2.0 MT` is the odd small six: 1998 cm³, 6 Inline, 86 × 86, compression 9.2, 116 hp, 170 Nm. Same peak power as `2.2 MT` but 27 Nm less torque, 75 kg less kerb, and a measured 12 s / 191 km/h pair the 2.2 does not have.
`2.2 MT` is the small four: 2198 cm³, 4 Inline, 86 × 94.6, 197 Nm at the same 2800 rpm as the 2.0’s 170 Nm. 0–100 and top speed not measured.
All `3.0` versions share 2969 cm³, 6 Inline, 95 × 69.8, compression 9.2, fuel 95, 165 hp at 5800, 230 Nm at 4200. Manuals are 5-speed; automatics are 4-speed. Engine position for generation 1 is not measured; generation 2 states Front, transverse.
No version has boost. Drive is RWD throughout. Gearbox choice is only Manual 5 vs Automatic 4.
Which Chevrolet Omega version to choose
If the number that matters is 0–100: `4.1 MT` at 9.5 s. Next measured ties are `3.0 MT` and `3.8 MT` at 10 s. Do not infer automatic times; they are not measured.
If the number is top speed: `3.8 MT` at 216 km/h, then `4.1 MT` 215, then `3.0 MT` 210, then `2.0 MT` 191. Automatics and `2.2 MT` not measured.
If the number is torque: `3.8 MT` / `3.8 AT` 304 Nm, then `4.1 MT` 285, then `3.0` 230, then `2.2 MT` 197, then `2.0 MT` 170. Peak torque rpm is lowest on the small engines (2800), then `4.1 MT` (3500), then `3.8` (4000), then `3.0` (4200).
If the number is horsepower: only the second generation reaches 200 hp. First generation tops out at 168 hp (`4.1 MT`), 3 hp above the `3.0` rows.
If the number is mass and clearance: `2.0 MT` is the lightest measured kerb (1275 kg) and shares 145 mm clearance with the rest of generation 1. `3.8 MT` is the heaviest measured kerb (1640 kg) and the lowest car (110 mm).
If fuel grade is the constraint: the four `3.0` versions need 95; the `2.0 MT`, `2.2 MT`, `4.1 MT`, `3.8 MT`, and `3.8 AT` list 80.
Manual vs automatic: every automatic here is 4-speed on the same engine as its 5-speed manual twin. `3.8 AT` vs `3.8 MT` is the same 200 hp / 304 Nm / 3791 cm³ with 0–100, top speed, and kerb not measured on the automatic. `3.0 AT` vs `3.0 MT` is the same 165 hp / 230 Nm with the same gaps. Choosing Automatic 4 is a gearbox choice, not a power choice.
Two cars both called `3.0 MT` (165 hp): pick the 75 L / 1450 kg / 1985 kg row for more tank and less mass, or the 70 L / 1497 kg / 2110 kg row if that is the car in front of you — they are not the same specification. The same split applies to the two `3.0 AT` (165 hp) rows.
Chevrolet Omega vs a later 3.8: generation 2 buys 200 hp, 304 Nm, V-shaped 6, Front, transverse, 216 km/h on the manual, and a 75 L tank. It spends 135 kg extra vs `4.1 MT`, 35 mm of clearance, and it does not beat `4.1 MT` on 0–100. Generation 1 buys height, a wider engine menu (`2.0 MT` through `4.1 MT`), and the only 9.5 s figure in the file.
Names this catalogue does not specify: searches for Omega CD, Imperial, Brasil, 1970, emblems, and “for sale” have no matching fields here. The versions that exist in the data are only `2.0 MT`, `2.2 MT`, `3.0 MT`, `3.0 AT`, `4.1 MT`, `3.8 MT`, and `3.8 AT`.