Which Buick Estate Wagon Version Should You Buy?
The catalogue data presents only one Buick Estate Wagon version: the 5.0 AT, produced from 1977 through 1990 as an Estate 5-door. Because the model has one generation and one listed modification, there is no alternative engine, gearbox, drivetrain, or body style to compare.
The catalogue data presents only one Buick Estate Wagon version: the 5.0 AT, produced from 1977 through 1990 as an Estate 5-door. Because the model has one generation and one listed modification, there is no alternative engine, gearbox, drivetrain, or body style to compare. The buying decision therefore comes down to whether this specific combination suits you: a 5032 cc Gasoline V-shaped 8-cylinder engine with 142 hp and 336 Nm, an Automatic 4-speed gearbox, and RWD.
Buick Estate Wagon generations compared
The Buick Estate Wagon has one generation in the supplied catalogue data. The 1 generation ran from 1977 to 1990 and used an Estate 5-door body. It contains one version, 5.0 AT. No restyling or second generation is listed, so there is no documented generational change in engine output, transmission, drive, body style, or performance to weigh against the original specification.
That also defines the relevant production window for this comparison. Searches for a 1990 Buick Estate Wagon refer to a year included in the data, while 1970, 1973, 1974, 1975, 1976, and 1996 fall outside the supplied 1977–1990 production range. This article cannot compare those years because no specifications for them are present in the data.
Buick Estate Wagon engine and specs
The only listed engine is the 5.0 AT unit. Its displacement is 5032 cc, its rated output is 142 hp or 104 kW at 4000 rpm, and maximum torque is 336 Nm at 1800 rpm. It is a Gasoline engine with 8 cylinders in a V-shaped layout and 2 valves per cylinder. The engine is mounted Front, longitudinal.
| Version | Power | Torque | Displacement | Fuel | Cylinders | Layout | Boost | Gearbox | Drive |
|---|---|---|---|---|---|---|---|---|---|
| 5.0 AT | 142 hp (104 kW) at 4000 rpm | 336 Nm at 1800 rpm | 5032 cc | Gasoline | 8 | V-shaped | not measured | Automatic, 4-speed | RWD |
Calculated from the catalogue figures, the 5.0 AT produces approximately 28.2 hp per litre and 66.8 Nm per litre. These ratios describe how its recorded output relates to its 5032 cc displacement; there is no second version in the dataset against which to rank them.
The 5.0 AT has a compression ratio of 8.2. Its fuel-system specification, required fuel, bore and stroke, and boost information are not measured. Consequently, those details should not be inferred from the engine’s displacement, cylinder count, or production years.
Buick Estate Wagon performance and mpg
For the 5.0 AT, the recorded top speed is 185 km/h. Acceleration from 0 to 100 km/h is not measured. City fuel consumption is not measured, highway fuel consumption is not measured, and combined fuel consumption is not measured. Buick Estate Wagon mpg therefore cannot be calculated reliably from the available catalogue data.
| Version | 0–100 km/h | Top speed | City consumption | Highway consumption | Combined consumption |
|---|---|---|---|---|---|
| 5.0 AT | not measured | 185 km/h | not measured | not measured | not measured |
The available figures do show where the engine’s rated values occur: 142 hp is delivered at 4000 rpm, while 336 Nm is recorded at 1800 rpm. The difference between those stated engine speeds is 2200 rpm. This is useful specification context, but it does not provide measured acceleration, fuel economy, or real-world driving behavior.
No CO₂ figure or ecological-class value is measured for the 5.0 AT. A buyer comparing fuel costs or emissions will therefore need independently verified information, because the catalogue figures cannot support such a comparison.
Buick Estate Wagon dimensions, size, and weight
The data identifies the Buick Estate Wagon as an Estate 5-door, but its exterior length, width, height, and wheelbase are not measured. Kerb weight and gross weight are also not measured. As a result, weight per horsepower cannot be calculated for the 5.0 AT, despite its known output of 142 hp.
| Version | Kerb weight | Gross weight | Ground clearance | Fuel tank | Wheel sizes |
|---|---|---|---|---|---|
| 5.0 AT | not measured | not measured | not measured | not measured | not measured |
Ground clearance, fuel-tank capacity, and wheel sizes are not measured either. The catalogue therefore does not support a numerical comparison of load capacity, exterior size, driving range, wheel fitment, or power-to-weight ratio.
The chassis information is more complete. The 5.0 AT has Independent, spring front suspension and Independent, spring rear suspension. Its front brakes are Disc, while its rear brakes are Drum. Because there is only one listed version, none of these components varies within the documented range.
Which Buick Estate Wagon version to buy and why
Choose the 5.0 AT if you want the sole configuration supported by this catalogue: a 5032 cc Gasoline V-shaped 8-cylinder engine producing 142 hp and 336 Nm, paired with an Automatic 4-speed gearbox and RWD in an Estate 5-door body. There is no lower-powered, higher-powered, manual, boosted, or alternative-drive version in the supplied data.
There is likewise no numerical basis for recommending one production year over another within 1977–1990. Every available specification belongs to the same 5.0 AT modification across that recorded period, and no year-by-year changes are listed. Claims that a 1990 example has different engine options, output, economy, dimensions, or weight would go beyond the data.
The clearest reasons to reject or postpone a purchase decision are gaps in the measurements. The 5.0 AT has no measured 0–100 km/h time, fuel consumption, kerb weight, gross weight, exterior dimensions, ground clearance, tank capacity, or wheel sizes in this dataset. Those omissions prevent meaningful calculations of mpg, driving range, payload, power-to-weight ratio, and garage or parking fit.
In short, there is no “best of several” Buick Estate Wagon versions here: the documented choice is 5.0 AT or no catalogue-backed alternative. Its known case rests on 142 hp, 336 Nm, 5032 cc, Automatic 4-speed transmission, RWD, and a 185 km/h top speed. Buy according to those verified specifications, and treat every unmeasured figure as an item requiring separate confirmation rather than an invitation to estimate.