1991 Buick Roadmaster vs. 2009 Jeep Grand Cherokee
To start off, 2009 Jeep Grand Cherokee 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 Jeep Grand Cherokee (381 HP @ 5600 RPM) has 204 more horse power than 1991 Buick Roadmaster. (177 HP @ 4200 RPM) In normal driving conditions, 2009 Jeep Grand Cherokee should accelerate faster than 1991 Buick Roadmaster. With that said, vehicle weight also plays an important factor in acceleration. 1991 Buick Roadmaster weights approximately 12 kg more than 2009 Jeep Grand Cherokee.
Because 2009 Jeep Grand Cherokee is four wheel drive (4WD), it will have significant more traction and grip than 1991 Buick Roadmaster. In wet, icy, snow, or gravel driving conditions, 2009 Jeep Grand Cherokee will offer significantly more control. 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 Jeep Grand Cherokee (548 Nm @ 4000 RPM) has 155 more torque (in Nm) than 1991 Buick Roadmaster. (393 Nm @ 2400 RPM). This means 2009 Jeep Grand Cherokee will have an easier job in driving up hills or pulling heavy equipment than 1991 Buick Roadmaster.
Compare all specifications:
| 1991 Buick Roadmaster | 2009 Jeep Grand Cherokee | |
| Make | Buick | Jeep |
| Model | Roadmaster | Grand Cherokee |
| Year Released | 1991 | 2009 |
| Body Type | Sedan | SUV |
| Engine Position | Front | Front |
| Engine Size | 5731 cc | 5654 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | V | V |
| Horse Power | 177 HP | 381 HP |
| Engine RPM | 4200 RPM | 5600 RPM |
| Torque | 393 Nm | 548 Nm |
| Torque RPM | 2400 RPM | 4000 RPM |
| Engine Compression Ratio | 8.0:1 | 9.6:1 |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Rear | 4WD |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1840 kg | 1828 kg |
| Vehicle Length | 5280 mm | 4780 mm |
| Vehicle Width | 2040 mm | 1850 mm |
| Vehicle Height | 1650 mm | 1760 mm |
| Wheelbase Size | 2950 mm | 2790 mm |
| Fuel Tank Capacity | 75 L | 80 L |
