1981 BMW 520 vs. 1981 Buick Estate
To start off, both 1981 BMW 520 and 1981 Buick Estate were released in the same year (1981). Therefore the support and the availability on parts for both vehicles should be relatively similar. At 5,735 cc (8 cylinders), 1981 Buick Estate is equipped with a bigger engine. In terms of performance, 1981 Buick Estate (153 HP @ 3400 RPM) has 30 more horse power than 1981 BMW 520. (123 HP @ 5800 RPM) In normal driving conditions, 1981 Buick Estate should accelerate faster than 1981 BMW 520. With that said, vehicle weight also plays an important factor in acceleration. 1981 Buick Estate weights approximately 660 kg more than 1981 BMW 520. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Both vehicles are rear wheel drive (RWD) - it offers better handling in dry conditions; in addition, if you are looking to drift, both vehicles do the job better than front wheel drive vehicles. With that said, do keep in mind that many other factors such as speed and the wear on your tires can also have significant impact on traction and control. Let's talk about torque, 1981 Buick Estate (380 Nm @ 1800 RPM) has 210 more torque (in Nm) than 1981 BMW 520. (170 Nm @ 4000 RPM). This means 1981 Buick Estate will have an easier job in driving up hills or pulling heavy equipment than 1981 BMW 520. 1981 Buick Estate has automatic transmission and 1981 BMW 520 has manual transmission. 1981 BMW 520 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 1981 Buick Estate will be easier to drive especially in heavy traffic.
Compare all specifications:
| 1981 BMW 520 | 1981 Buick Estate | |
| Make | BMW | Buick |
| Model | 520 | Estate |
| Year Released | 1981 | 1981 |
| Body Type | Sedan | Station Wagon |
| Engine Position | Front | Front |
| Engine Size | 1991 cc | 5735 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Horse Power | 123 HP | 153 HP |
| Engine RPM | 5800 RPM | 3400 RPM |
| Torque | 170 Nm | 380 Nm |
| Torque RPM | 4000 RPM | 1800 RPM |
| Engine Bore Size | 80 mm | 96.5 mm |
| Engine Stroke Size | 66 mm | 97.8 mm |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1220 kg | 1880 kg |
| Vehicle Length | 4630 mm | 5510 mm |
| Vehicle Width | 1710 mm | 1990 mm |
| Vehicle Height | 1430 mm | 1440 mm |
| Wheelbase Size | 2630 mm | 2950 mm |
