1987 BMW 320 vs. 1991 Buick Roadmaster
To start off, 1991 Buick Roadmaster is newer by 4 year(s). Which means there will be less support and parts availability for 1987 BMW 320. In addition, the cost of maintenance, including insurance, on 1987 BMW 320 would be higher. At 5,731 cc (8 cylinders), 1991 Buick Roadmaster is equipped with a bigger engine. In terms of performance, 1987 BMW 320 (189 HP @ 6900 RPM) has 12 more horse power than 1991 Buick Roadmaster. (177 HP @ 4200 RPM). In normal driving conditions, 1987 BMW 320 should accelerate faster than 1991 Buick Roadmaster. With that said, vehicle weight also plays an important factor in acceleration. 1991 Buick Roadmaster weights approximately 622 kg more than 1987 BMW 320.
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, 1991 Buick Roadmaster (393 Nm @ 2400 RPM) has 183 more torque (in Nm) than 1987 BMW 320. (210 Nm @ 4900 RPM). This means 1991 Buick Roadmaster will have an easier job in driving up hills or pulling heavy equipment than 1987 BMW 320. 1991 Buick Roadmaster has automatic transmission and 1987 BMW 320 has manual transmission. 1987 BMW 320 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 1991 Buick Roadmaster will be easier to drive especially in heavy traffic.
Compare all specifications:
| 1987 BMW 320 | 1991 Buick Roadmaster | |
| Make | BMW | Buick |
| Model | 320 | Roadmaster |
| Year Released | 1987 | 1991 |
| Body Type | Coupe | Sedan |
| Engine Position | Front | Front |
| Engine Size | 1989 cc | 5731 cc |
| Engine Cylinders | 4 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Horse Power | 189 HP | 177 HP |
| Engine RPM | 6900 RPM | 4200 RPM |
| Torque | 210 Nm | 393 Nm |
| Torque RPM | 4900 RPM | 2400 RPM |
| Engine Compression Ratio | 10.8:1 | 8.0:1 |
| Fuel Type | Gasoline - Premium | Gasoline |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 1218 kg | 1840 kg |
| Vehicle Length | 4330 mm | 5280 mm |
| Vehicle Width | 1650 mm | 2040 mm |
| Vehicle Height | 1390 mm | 1650 mm |
| Wheelbase Size | 2580 mm | 2950 mm |
| Fuel Tank Capacity | 70 L | 75 L |
