2003 BMW 645 vs. 1993 Buick Roadmaster
To start off, 2003 BMW 645 is newer by 10 year(s). Which means there will be less support and parts availability for 1993 Buick Roadmaster. In addition, the cost of maintenance, including insurance, on 1993 Buick Roadmaster would be higher. At 5,733 cc (8 cylinders), 1993 Buick Roadmaster is equipped with a bigger engine. In terms of performance, 2003 BMW 645 (310 HP @ 6000 RPM) has 133 more horse power than 1993 Buick Roadmaster. (177 HP @ 4200 RPM). In normal driving conditions, 2003 BMW 645 should accelerate faster than 1993 Buick Roadmaster. With that said, vehicle weight also plays an important factor in acceleration. 1993 Buick Roadmaster weights approximately 142 kg more than 2003 BMW 645.
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, 2003 BMW 645 (450 Nm @ 3600 RPM) has 57 more torque (in Nm) than 1993 Buick Roadmaster. (393 Nm @ 2400 RPM). This means 2003 BMW 645 will have an easier job in driving up hills or pulling heavy equipment than 1993 Buick Roadmaster.
Compare all specifications:
| 2003 BMW 645 | 1993 Buick Roadmaster | |
| Make | BMW | Buick |
| Model | 645 | Roadmaster |
| Year Released | 2003 | 1993 |
| Body Type | Coupe | Sedan |
| Engine Position | Front | Front |
| Engine Size | 4398 cc | 5733 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | V | V |
| Horse Power | 310 HP | 177 HP |
| Engine RPM | 6000 RPM | 4200 RPM |
| Torque | 450 Nm | 393 Nm |
| Torque RPM | 3600 RPM | 2400 RPM |
| Drive Type | Rear | Rear |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 1698 kg | 1840 kg |
| Vehicle Length | 4830 mm | 5490 mm |
| Vehicle Width | 1860 mm | 1990 mm |
| Vehicle Height | 1380 mm | 1450 mm |
| Wheelbase Size | 2790 mm | 2950 mm |
