1991 Buick Roadmaster vs. 2005 Chevrolet Avalanche
To start off, 2005 Chevrolet Avalanche is newer by 14 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, 2005 Chevrolet Avalanche (295 HP @ 5600 RPM) has 118 more horse power than 1991 Buick Roadmaster. (177 HP @ 4200 RPM) In normal driving conditions, 2005 Chevrolet Avalanche should accelerate faster than 1991 Buick Roadmaster. With that said, vehicle weight also plays an important factor in acceleration. 2005 Chevrolet Avalanche weights approximately 723 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.
Because 2005 Chevrolet Avalanche 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, 2005 Chevrolet Avalanche 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, 2005 Chevrolet Avalanche (447 Nm) has 54 more torque (in Nm) than 1991 Buick Roadmaster. (393 Nm). This means 2005 Chevrolet Avalanche will have an easier job in driving up hills or pulling heavy equipment than 1991 Buick Roadmaster.
Compare all specifications:
| 1991 Buick Roadmaster | 2005 Chevrolet Avalanche | |
| Make | Buick | Chevrolet |
| Model | Roadmaster | Avalanche |
| Year Released | 1991 | 2005 |
| Body Type | Sedan | Pickup |
| Engine Position | Front | Front |
| Engine Size | 5731 cc | 5326 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | V | V |
| Horse Power | 177 HP | 295 HP |
| Engine RPM | 4200 RPM | 5600 RPM |
| Torque | 393 Nm | 447 Nm |
| Engine Compression Ratio | 8.0:1 | 9.5:1 |
| Drive Type | Rear | 4WD |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 6 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1840 kg | 2563 kg |
| Vehicle Length | 5280 mm | 5640 mm |
| Vehicle Width | 2040 mm | 2030 mm |
| Vehicle Height | 1650 mm | 1880 mm |
| Wheelbase Size | 2950 mm | 3310 mm |
| Fuel Tank Capacity | 75 L | 117 L |
