2006 BMW 545 vs. 1991 Buick Roadmaster
To start off, 2006 BMW 545 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 545 (328 HP @ 6100 RPM) has 151 more horse power than 1991 Buick Roadmaster. (177 HP @ 4200 RPM). In normal driving conditions, 2006 BMW 545 should accelerate faster than 1991 Buick Roadmaster.
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 545 (450 Nm @ 3700 RPM) has 57 more torque (in Nm) than 1991 Buick Roadmaster. (393 Nm @ 2400 RPM). This means 2006 BMW 545 will have an easier job in driving up hills or pulling heavy equipment than 1991 Buick Roadmaster.
Compare all specifications:
| 2006 BMW 545 | 1991 Buick Roadmaster | |
| Make | BMW | Buick |
| Model | 545 | Roadmaster |
| Year Released | 2006 | 1991 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 2494 cc | 5731 cc |
| Horse Power | 328 HP | 177 HP |
| Engine RPM | 6100 RPM | 4200 RPM |
| Torque | 450 Nm | 393 Nm |
| Torque RPM | 3700 RPM | 2400 RPM |
| Drive Type | Rear | Rear |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Width | 1850 mm | 2040 mm |
| Fuel Tank Capacity | 70 L | 75 L |
