2009 BMW M5 vs. 1991 Buick Roadmaster
To start off, 2009 BMW M5 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 5,731 cc (8 cylinders), 1991 Buick Roadmaster is equipped with a bigger engine. In terms of performance, 2009 BMW M5 (500 HP @ 7750 RPM) has 323 more horse power than 1991 Buick Roadmaster. (177 HP @ 4200 RPM). In normal driving conditions, 2009 BMW M5 should accelerate faster than 1991 Buick Roadmaster. With that said, vehicle weight also plays an important factor in acceleration. 2009 BMW M5 weights approximately 115 kg more than 1991 Buick Roadmaster. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
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 M5 (520 Nm @ 6100 RPM) has 127 more torque (in Nm) than 1991 Buick Roadmaster. (393 Nm @ 2400 RPM). This means 2009 BMW M5 will have an easier job in driving up hills or pulling heavy equipment than 1991 Buick Roadmaster. 1991 Buick Roadmaster has automatic transmission and 2009 BMW M5 has manual transmission. 2009 BMW M5 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:
2009 BMW M5 | 1991 Buick Roadmaster | |
Make | BMW | Buick |
Model | M5 | Roadmaster |
Year Released | 2009 | 1991 |
Body Type | Station Wagon | Sedan |
Engine Position | Front | Front |
Engine Size | 4999 cc | 5731 cc |
Engine Cylinders | 10 cylinders | 8 cylinders |
Engine Type | V | V |
Horse Power | 500 HP | 177 HP |
Engine RPM | 7750 RPM | 4200 RPM |
Torque | 520 Nm | 393 Nm |
Torque RPM | 6100 RPM | 2400 RPM |
Engine Compression Ratio | 12.0:1 | 8.0:1 |
Fuel Type | Gasoline | Gasoline |
Drive Type | Rear | Rear |
Transmission Type | Manual | Automatic |
Number of Seats | 5 seats | 5 seats |
Number of Doors | 5 doors | 4 doors |
Vehicle Weight | 1955 kg | 1840 kg |
Vehicle Length | 4860 mm | 5280 mm |
Vehicle Width | 1850 mm | 2040 mm |
Vehicle Height | 1520 mm | 1650 mm |
Wheelbase Size | 2890 mm | 2950 mm |
Fuel Tank Capacity | 70 L | 75 L |