2009 BMW 745 vs. 1991 Buick Roadmaster
To start off, 2009 BMW 745 is newer by 18 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 5,002 cc (8 cylinders), 1991 Buick Roadmaster is equipped with a bigger engine. In terms of performance, 2009 BMW 745 (328 HP @ 6100 RPM) has 160 more horse power than 1991 Buick Roadmaster. (168 HP @ 4200 RPM). In normal driving conditions, 2009 BMW 745 should accelerate faster than 1991 Buick Roadmaster. With that said, vehicle weight also plays an important factor in acceleration. 1991 Buick Roadmaster weights approximately 15 kg more than 2009 BMW 745.
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, 2009 BMW 745 (450 Nm @ 3600 RPM) has 104 more torque (in Nm) than 1991 Buick Roadmaster. (346 Nm @ 2400 RPM). This means 2009 BMW 745 will have an easier job in driving up hills or pulling heavy equipment than 1991 Buick Roadmaster.
Compare all specifications:
| 2009 BMW 745 | 1991 Buick Roadmaster | |
| Make | BMW | Buick |
| Model | 745 | Roadmaster |
| Year Released | 2009 | 1991 |
| Body Type | Sedan | Station Wagon |
| Engine Position | Front | Front |
| Engine Size | 4396 cc | 5002 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | V | V |
| Horse Power | 328 HP | 168 HP |
| Engine RPM | 6100 RPM | 4200 RPM |
| Torque | 450 Nm | 346 Nm |
| Torque RPM | 3600 RPM | 2400 RPM |
| Fuel Type | Gasoline - Premium | Gasoline |
| Drive Type | Rear | Rear |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1985 kg | 2000 kg |
| Vehicle Length | 5180 mm | 5540 mm |
| Vehicle Width | 1910 mm | 2040 mm |
| Vehicle Height | 1500 mm | 1540 mm |
| Wheelbase Size | 3140 mm | 2950 mm |
