2006 BMW 535 vs. 1991 Buick Roadmaster
To start off, 2006 BMW 535 is newer by 15 year(s). Which means there will be less support and parts availability for 1991 Buick Roadmaster. In addition, the cost of maintenance, including insurance, on 1991 Buick Roadmaster would be higher. At 5,731 cc (8 cylinders), 1991 Buick Roadmaster is equipped with a bigger engine. In terms of performance, 2006 BMW 535 (268 HP @ 4000 RPM) has 91 more horse power than 1991 Buick Roadmaster. (177 HP @ 4200 RPM). In normal driving conditions, 2006 BMW 535 should accelerate faster than 1991 Buick Roadmaster. With that said, vehicle weight also plays an important factor in acceleration. 1991 Buick Roadmaster weights approximately 100 kg more than 2006 BMW 535.
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, 2006 BMW 535 (560 Nm @ 2000 RPM) has 167 more torque (in Nm) than 1991 Buick Roadmaster. (393 Nm @ 2400 RPM). This means 2006 BMW 535 will have an easier job in driving up hills or pulling heavy equipment than 1991 Buick Roadmaster. 1991 Buick Roadmaster has automatic transmission and 2006 BMW 535 has manual transmission. 2006 BMW 535 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:
| 2006 BMW 535 | 1991 Buick Roadmaster | |
| Make | BMW | Buick |
| Model | 535 | Roadmaster |
| Year Released | 2006 | 1991 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 2993 cc | 5731 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Horse Power | 268 HP | 177 HP |
| Engine RPM | 4000 RPM | 4200 RPM |
| Torque | 560 Nm | 393 Nm |
| Torque RPM | 2000 RPM | 2400 RPM |
| Engine Compression Ratio | 16.5:1 | 8.0:1 |
| Fuel Type | Diesel | Gasoline |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1740 kg | 1840 kg |
| Vehicle Length | 4850 mm | 5280 mm |
| Vehicle Width | 1850 mm | 2040 mm |
| Vehicle Height | 1470 mm | 1650 mm |
| Wheelbase Size | 2890 mm | 2950 mm |
| Fuel Tank Capacity | 70 L | 75 L |
